diff --git a/Docs/.!97170!index.md b/Docs/.!97170!index.md
new file mode 100644
index 0000000..b33ca72
--- /dev/null
+++ b/Docs/.!97170!index.md
@@ -0,0 +1,53 @@
+# Kord Documentation Index
+
+이 루트 색인 문서는 프로젝트 내의 모든 구조화된 문서를 카테고리별로 모아 탐색을 돕기 위해 작성되었습니다.
+
+
+## 정책 및 규칙 (Rules)
+
+- [보안 가이드라인 (Security Rules)](Rules/security_guidelines.md)
+- [다국어 지원 개발 가이드라인 (i18n Development Guidelines)](Rules/i18n_guidelines.md)
+
+
+## 기능 명세 (Features)
+
+- [임시 음성 채널 자동화 (Temp Voice Channels)](Features/temp_voice_channels.md)
+
+
+## 기획서 (Plans)
+
+- [에러 안내 기능 기획서 (Error Guidance Plan)](Plans/Error_Guidance_Plan.md)
+- [다국어 지원 기획서 (i18n Plan)](Plans/i18n_Plan.md)
+- [서버 이벤트 일정 관리 기능 기획안 (Event Schedule Management Plan)](Plans/Event_Schedule_Management_Plan.md)
+- [YouTube 음악 재생 기능 기획안 (YouTube Music Playback Plan)](Plans/YouTube_Music_Playback_Plan.md)
+- [재련 미니게임 기획서 (Refinement Mini-Game Plan)](Plans/MiniGame_Refinement_Plan.md)
+
+
+## 아키텍처 및 정책 결정 (Decisions)
+
+- [구독 티어 시스템 설계 (Subscription Tiers)](Decisions/subscription_tiers.md)
+
+
+## 트러블슈팅 (Troubleshooting)
+
+- [Voice Channel Missing Permissions (50013) 해결건](Troubleshooting/50013_Missing_Permissions.md)
+- [Temp Voice 유령 채널 미삭제 버그 해결건](Troubleshooting/handleLeave_ghost_channel.md)
+
+
+## 진행/완료 내역 (Work Done)
+
+- [2026-03-27: 봇 상태 메시지 기능 구현 (Bot Presence Implementation)](WorkDone/2026-03-27_Presence_Implementation.md)
+- [2026-03-27: 임시 음성 채널 기능 구현 (Temp Voice Channels Implementation)](WorkDone/2026-03-27_Voice_Channels_Implementation.md)
+- [2026-03-27: 임시 음성 채널 고도화 (Voice Channels Improvements)](WorkDone/2026-03-27_Voice_Channels_Improvements.md)
+- [2026-03-27: 다국어 지원 구현 (i18n Implementation)](WorkDone/2026-03-27_i18n_Implementation.md)
+- [2026-03-27: i18n 테스트 코드 검사 도구 구현 (i18n Check Tool Implementation)](WorkDone/2026-03-27_i18n_Check_Tool_Implementation.md)
+- [2026-03-27: /config 명령어 및 기능 관리 리팩토링 (Config & Feature Refactoring)](WorkDone/2026-03-27_Config_And_Feature_Refactoring.md)
+- [2026-03-27: 감사 채널 구현 (Audit Log Channel Implementation)](WorkDone/2026-03-27_Audit_Log_Channel_Implementation.md)
+- [2026-03-27: 권한 진단 기능 구현 (Permission Audit Implementation)](WorkDone/2026-03-27_Permission_Audit_Implementation.md)
+- [2026-03-27: 에러 안내 UX 개선 및 통합 (Error Guidance UX Implementation)](WorkDone/2026-03-27_Error_Guidance_UX_Implementation.md)
+- [2026-03-27: Kord 프로젝트 초기 설정 (Project Initial Setup)](WorkDone/2026-03-27_Project_Initial_Setup.md)
+- [2026-03-30: 서버 이벤트 일정 관리 Phase 1 구현 (Event Schedule Phase 1 Implementation)](WorkDone/2026-03-30_Event_Schedule_Phase1_Implementation.md)
+- [2026-03-30: 서버 이벤트 일정 관리 Phase 2 구현 (Event Schedule Phase 2 Implementation)](WorkDone/2026-03-30_Event_Schedule_Phase2_Implementation.md)
+- [2026-03-30: 서버 이벤트 시작 시점 공지 구현 (Event Schedule Start Announcement Implementation)](WorkDone/2026-03-30_Event_Schedule_Start_Announcement_Implementation.md)
+- [2026-03-30: 이벤트 리마인더 분 단위 옵션 구현 (Event Reminder Offsets Implementation)](WorkDone/2026-03-30_Event_Reminder_Offsets_Implementation.md)
+- [2026-03-30: 명령어 계층 구조 리팩토링 (Hierarchical Command Refactoring)](WorkDone/2026-03-30_HierarchicalRefactor.md)
diff --git a/Docs/Plans/MiniGame_Refinement_Plan.md b/Docs/Plans/MiniGame_Refinement_Plan.md
new file mode 100644
index 0000000..f65c962
--- /dev/null
+++ b/Docs/Plans/MiniGame_Refinement_Plan.md
@@ -0,0 +1,63 @@
+# Refinement Mini-Game Implementation Plan
+
+This document outlines the design and implementation details of the 'Refinement' (재련) mini-game system for Kord.
+
+## Overview
+The Refinement mini-game allows users to strengthen their virtual weapons, participate in simple battles, and earn gold. It features a high-risk, high-reward progression system with a community-wide 'Fever Time' bonus.
+
+## Core Features
+
+### 1. Weapon Refinement
+- **Progression**: Level- **재련 비용**: `floor(10 × 1.6^level)G` (레벨별 기하급수적 증가)
+- **판매 가격**: `floor(현재_단계_비용 × 보정계수)G`
+    - 0~4강: 비용의 **2배**
+    - 5~25강: 비용의 **(2 + (L-4) × 10)배** (기대값 보정으로 고강화 가치 극대화)
+- **재련 성공 확률**:
+    - 0→4강: 100% ~ 90%
+    - 4→5강: **5%** (급락)
+    - 11→20강: **0.1%** (신화)
+    - 21→25강: **0.01%** (기적)
+- **전투 보상**: `(패배자_단계_비용 × (패배자_레벨/승리자_레벨) × 2.0) × (0.8~1.2 랜덤)`
+- **최대 단계**: **25강** (Lvl 25)
+- **최대 내구도**: **10 + Level** (강화 단계가 높을수록 내구도가 확장됨)
+- **전투 규칙**: 
+    - 0강 무기 소유자는 전투를 걸 수 없으며, 공격 대상으로 지정될 수도 없습니다.
+    - **일일 공격 제한**: 각 유저는 **하루 최대 10회**만 전투를 신청할 수 있습니다. (00시 초기화)
+    - **승리 확률 페널티**: 상대보다 5강 이상 낮을 경우 승률이 급락하며, 10강 차이부터는 **승률 0%**가 적용됩니다.
+    - 전투 참여 시(공격/방어 모두) 내구도 -1.
+    - 내구도 0인 상태에서 전투를 시도하면 전투 후 무기가 즉시 **파괴**됩니다.
+    - 재련 성공 시 내구도가 새로운 **최대치(10+Level)**로 완전 회복(수리)됩니다.
+    - 내구도가 0인 상태에서 전투 시도(공격) 시 전투 후 무기 파괴.
+as the level increases.
+- **Risk**: Failure at higher levels can lead to weapon destruction (reset to level 0).
+- **Durability**: Each battle reduces durability. **Success and Level Up fully restores durability.**
+
+### 2. Battle System
+- **One-way Attack**: Users can attack others without a formal acceptance process.
+- **Outcome**: Calculated based on weapon levels.
+- **Rewards**: The winner receives gold based on both participants' levels.
+- **Weapon Destruction**: If a user attacks while their durability is 0, their weapon is permanently destroyed.
+
+### 3. Fever System
+- **Dynamic Analysis**: The bot tracks server message activity per hour.
+- **Activation**: Fever mode activates during the server's peak activity hour (determined by historical data).
+- **Bonus**: +10% success rate for all refinement attempts during Fever Time.
+
+### 4. Economy & Management
+- **Gold Sources**: Daily check-ins, winning battles, and selling weapons.
+- **Check-in**: `/refine checkin` grants a set amount of gold once per day.
+- **Selling**: Max level weapons must be sold to restart the progression.
+- **Registry**: Server admins can enable/disable mini-games and restrict them to specific channels via `/minigame`.
+
+## Technical Architecture
+- **Prisma**: Persists user profiles, server configs, activity logs, and fever states.
+- **ActivityTrackerService**: Buffers and saves message counts to avoid DB bottleneck.
+- **FeverService**: Analyzes activity and manages the 1-hour fever window.
+- **RefinementService**: Contains the core game logic (probabilities, rewards).
+
+## Implementation Progress
+- [x] Database Schema updates
+- [x] Infrastructure (Registry, Activity Tracking)
+- [x] Game Logic (Refinement, Battle, Economy)
+- [x] Commands and Interaction Handlers
+- [x] Fever System Integration
diff --git a/Docs/WorkDone/2026-03-30_RefinementImplementation.md b/Docs/WorkDone/2026-03-30_RefinementImplementation.md
new file mode 100644
index 0000000..9ef2e29
--- /dev/null
+++ b/Docs/WorkDone/2026-03-30_RefinementImplementation.md
@@ -0,0 +1,39 @@
+# 미니게임 시스템 및 재련(Refinement) 구현 완료 보고서
+
+- **날짜**: 2026-03-30
+- **담당**: Antigravity (AI Assistant)
+
+## 1. 개요 (Overview)
+Kord 봇의 메인 기능 외에 즐길 거리를 제공하기 위해 **미니게임 관리 시스템**을 구축하고, 첫 번째 정식 게임으로 **재련(Refinement)** 미니게임을 구현했습니다. 또한 서버 활동량을 분석하여 보너스를 제공하는 **피버(Fever)** 시스템을 도입했습니다.
+
+## 2. 주요 구현 내용
+
+### 2.1. 미니게임 관리 인프라 (Core)
+- **MiniGameRegistry**: 미니게임을 통합 등록하고 관리하는 구조를 설계했습니다.
+- **Config Command**: `/minigame` 명령어를 통해 서버 관리자가 게임별 활성화(`toggle`), 전용 채널(`channel`), 상태(`status`)를 관리할 수 있습니다.
+- **Prisma 7 Migration**: 봇의 DB 라이브러리를 Prisma 7.6.0으로 업그레이드하고, 새로운 엔진 구조에 맞춰 **Driver Adapter(PostgreSQL)** 설정을 완료했습니다.
+
+### 2.2. 재련(Refinement) 미니게임
+- **성장 시스템**: 0단계부터 20단계까지 무기를 강화할 수 있습니다.
+- **확률 로직**: 단계가 올라갈수록 성공 확률이 감소하며, 실패 시 무기가 파괴될 위험이 존재합니다.
+- **강화 효과**: 강화 성공 시 무기의 **내구도가 즉시 100% 회복**됩니다.
+- **배틀 시스템**: 수락 절차 없이 일방적으로 공격하는 배틀 시스템을 구현했습니다. (내구도 소모 및 파괴 리스크 포함)
+- **경제 시스템**: 일일 출석(`checkin`)과 강화 단계에 따른 무기 판매(`sell`) 기능을 통해 골드 선순환 구조를 만들었습니다.
+
+### 2.3. 피버 타임 시스템 (Fever System)
+- **활동 추적**: 모든 메시지 활동을 시간대별(Hour)로 집계하여 `ActivityLog`에 기록합니다.
+- **피크 시간 분석**: 과거 데이터를 분석하여 서버가 가장 활발한 시간대를 찾아냅니다.
+- **보너스**: 피버 타임(1시간) 동안 재련 성공 확률이 **+10%** 추가로 가산됩니다.
+
+## 3. 기술적 변경 사항
+- **DB 스키마**: `MiniGameConfig`, `RefinementProfile`, `ActivityLog`, `FeverState` 총 4개의 모델을 추가했습니다.
+- **서비스 레이어**: `RefinementService`, `FeverService`, `ActivityTrackerService` 등 비즈니스 로직을 독립된 서비스로 분리했습니다.
+- **인터랙션**: 재련 결과 임베드에서 버튼을 통해 즉시 다시 시도할 수 있는 UX를 구현했습니다.
+
+## 4. 검증 결과 (Verification)
+- **런타임 테스트**: `yarn run dev` 환경에서 Driver Adapter를 통한 DB 연결 및 봇 초기화 성공을 확인했습니다.
+- **테스트 코드**: Prisma 7 초기화 이슈를 해결하여 기존 테스트 슈트(Voice, Config 등)가 정상 작동함을 확인했습니다.
+- **명령어 동작**: `/minigame` 및 `/refine`의 모든 서브커맨드 응답 및 데이터 반영을 확인했습니다.
+
+---
+**보고서 끝.**
diff --git a/Docs/index.md b/Docs/index.md
index 0554c73..4e1ce8a 100644
--- a/Docs/index.md
+++ b/Docs/index.md
@@ -16,14 +16,11 @@
 
 ## 기획서 (Plans)
 
-- [기능 로드맵 (Feature Roadmap)](Plans/Feature_Roadmap.md)
-- [임시 음성 채널 기능 기획서 (Temp Voice Channel Plan)](Plans/Temp_Voice_Channel_Plan.md)
-- [에러 안내 기능 기획서 (Error Guidance Plan)](Plans/Error_Guidance_Plan.md)
-- [봇 상태 메시지 기획 (Bot Presence Plan)](Plans/Bot_Presence_Plan.md)
 - [에러 안내 기능 기획서 (Error Guidance Plan)](Plans/Error_Guidance_Plan.md)
 - [다국어 지원 기획서 (i18n Plan)](Plans/i18n_Plan.md)
 - [서버 이벤트 일정 관리 기능 기획안 (Event Schedule Management Plan)](Plans/Event_Schedule_Management_Plan.md)
 - [YouTube 음악 재생 기능 기획안 (YouTube Music Playback Plan)](Plans/YouTube_Music_Playback_Plan.md)
+- [재련 미니게임 기획서 (Refinement Mini-Game Plan)](Plans/MiniGame_Refinement_Plan.md)
 
 
 ## 아키텍처 및 정책 결정 (Decisions)
@@ -57,3 +54,4 @@
 - [2026-03-30: YouTube ���� ��� Phase 1 ���� (YouTube Music Playback Phase 1 Implementation)](WorkDone/2026-03-30_YouTube_Music_Playback_Phase1_Implementation.md)
 - [2026-03-31: YouTube ���� ��� Phase 2 ���� (YouTube Music Playback Phase 2 Implementation)](WorkDone/2026-03-31_YouTube_Music_Playback_Phase2_Implementation.md)
 - [2026-03-31: YouTube ���� ��� Phase 3 ���� (YouTube Music Playback Phase 3 Implementation)](WorkDone/2026-03-31_YouTube_Music_Playback_Phase3_Implementation.md)
+- [2026-03-30: 미니게임 시스템 및 재련 게임 구현 (Mini-Game System & Refinement Implementation)](WorkDone/2026-03-30_RefinementImplementation.md)
diff --git a/README.md b/README.md
index 66bd019..e26aa43 100644
--- a/README.md
+++ b/README.md
@@ -67,4 +67,7 @@ Kord는 Discord 서버 관리를 돕는 강력하고 유연한 다기능 봇입
 - **서버 설정 (Config)**: 따라하기(Mimic), 큰 이모지(Big Emoji) 등 봇의 기능을 서버별 환경에 맞게 토글하거나 설정할 수 있습니다.
 - **권한 감사 (Permission Audit)**: 봇의 정상 작동을 방해하는 권한 문제를 즉시 진단하고 해결 방법을 안내합니다.
 - **초기 설정 마법사 (Setup Wizard)**: 봇 도입 초기 기능을 한눈에 설정할 수 있는 직관적인 UI를 제공합니다.
+- **미니게임 시스템 (Mini-Games)**: 서버 내에서 즐길 수 있는 다양한 미니게임을 제공하며, 관리자가 게임별 활성화 및 전용 채널을 설정할 수 있습니다.
+- **재련 (Refinement)**: 무기를 강화하고 다른 유저와 전투하며 골드를 획득하는 성장형 미니게임입니다.
+- **피버 타임 (Fever Time)**: 서버 활동량을 자동으로 분석하여 가장 활발한 시간대에 재련 성공 확률 보너스를 제공합니다.
 - **다국어 지원 (i18n)**: 한국어와 영어를 포함한 다국어 환경을 지원합니다.
diff --git a/package.json b/package.json
index 82709db..d11e286 100644
--- a/package.json
+++ b/package.json
@@ -4,11 +4,14 @@
   "dependencies": {
     "@discordjs/opus": "^0.10.0",
     "@discordjs/voice": "^0.19.2",
-    "@prisma/client": "6.4.1",
+    "@prisma/adapter-pg": "^7.6.0",
+    "@prisma/client": "7.6.0",
+    "@types/pg": "^8.20.0",
     "discord.js": "^14.25.1",
     "dotenv": "^17.3.1",
     "ffmpeg-static": "^5.3.0",
     "ioredis": "^5.10.1",
+    "pg": "^8.20.0",
     "prism-media": "^1.3.5",
     "youtubei.js": "^17.0.1"
   },
@@ -20,7 +23,7 @@
     "eslint": "^10.1.0",
     "jest": "^30.3.0",
     "prettier": "^3.8.1",
-    "prisma": "6.4.1",
+    "prisma": "7.6.0",
     "ts-jest": "^29.4.6",
     "tsx": "^4.21.0",
     "typescript": "^6.0.2"
@@ -31,5 +34,8 @@
     "start": "node dist/index.js",
     "test": "jest",
     "check-i18n": "tsx scripts/check-i18n-tests.ts"
+  },
+  "prisma": {
+    "seed": "tsx prisma/seed.ts"
   }
 }
diff --git a/package_feature.json b/package_feature.json
new file mode 100644
index 0000000..e69de29
diff --git a/package_main.json b/package_main.json
new file mode 100644
index 0000000..e69de29
diff --git a/prisma.config.ts b/prisma.config.ts
new file mode 100644
index 0000000..3268749
--- /dev/null
+++ b/prisma.config.ts
@@ -0,0 +1,13 @@
+import path from 'node:path';
+import { defineConfig } from 'prisma/config';
+import 'dotenv/config';
+
+export default defineConfig({
+  schema: path.join('prisma', 'schema.prisma'),
+  datasource: {
+    url: process.env.DATABASE_URL!,
+  },
+  migrations: {
+    seed: 'tsx ./prisma/seed.ts',
+  },
+});
diff --git a/prisma/migrations/20260330074509_add_minigame_refinement_fever_activity_v3/migration.sql b/prisma/migrations/20260330074509_add_minigame_refinement_fever_activity_v3/migration.sql
new file mode 100644
index 0000000..ccd18f7
--- /dev/null
+++ b/prisma/migrations/20260330074509_add_minigame_refinement_fever_activity_v3/migration.sql
@@ -0,0 +1,72 @@
+-- CreateTable
+CREATE TABLE "MiniGameConfig" (
+    "id" TEXT NOT NULL,
+    "guildId" TEXT NOT NULL,
+    "gameKey" TEXT NOT NULL,
+    "enabled" BOOLEAN NOT NULL DEFAULT false,
+    "channelId" TEXT,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "MiniGameConfig_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateTable
+CREATE TABLE "RefinementProfile" (
+    "userId" TEXT NOT NULL,
+    "guildId" TEXT NOT NULL,
+    "gold" INTEGER NOT NULL DEFAULT 1000,
+    "weaponLevel" INTEGER NOT NULL DEFAULT 0,
+    "maxWeaponLevel" INTEGER NOT NULL DEFAULT 0,
+    "durability" INTEGER NOT NULL DEFAULT 10,
+    "tryCount" INTEGER NOT NULL DEFAULT 0,
+    "successCount" INTEGER NOT NULL DEFAULT 0,
+    "failCount" INTEGER NOT NULL DEFAULT 0,
+    "destroyCount" INTEGER NOT NULL DEFAULT 0,
+    "battleWin" INTEGER NOT NULL DEFAULT 0,
+    "battleLoss" INTEGER NOT NULL DEFAULT 0,
+    "isDisabled" BOOLEAN NOT NULL DEFAULT false,
+    "lastCheckIn" TIMESTAMP(3),
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "RefinementProfile_pkey" PRIMARY KEY ("userId","guildId")
+);
+
+-- CreateTable
+CREATE TABLE "ActivityLog" (
+    "id" TEXT NOT NULL,
+    "guildId" TEXT NOT NULL,
+    "hour" INTEGER NOT NULL,
+    "dayOfWeek" INTEGER NOT NULL,
+    "count" INTEGER NOT NULL DEFAULT 0,
+    "weekStart" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "ActivityLog_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateTable
+CREATE TABLE "FeverState" (
+    "guildId" TEXT NOT NULL,
+    "isActive" BOOLEAN NOT NULL DEFAULT false,
+    "peakHour" INTEGER,
+    "bonusRate" DOUBLE PRECISION NOT NULL DEFAULT 0.1,
+    "expiresAt" TIMESTAMP(3),
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "FeverState_pkey" PRIMARY KEY ("guildId")
+);
+
+-- CreateIndex
+CREATE INDEX "MiniGameConfig_guildId_idx" ON "MiniGameConfig"("guildId");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "MiniGameConfig_guildId_gameKey_key" ON "MiniGameConfig"("guildId", "gameKey");
+
+-- CreateIndex
+CREATE INDEX "RefinementProfile_guildId_weaponLevel_idx" ON "RefinementProfile"("guildId", "weaponLevel" DESC);
+
+-- CreateIndex
+CREATE INDEX "ActivityLog_guildId_weekStart_idx" ON "ActivityLog"("guildId", "weekStart");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "ActivityLog_guildId_hour_dayOfWeek_weekStart_key" ON "ActivityLog"("guildId", "hour", "dayOfWeek", "weekStart");
diff --git a/prisma/migrations/20260330085217_add_battle_limits/migration.sql b/prisma/migrations/20260330085217_add_battle_limits/migration.sql
new file mode 100644
index 0000000..1e028e7
--- /dev/null
+++ b/prisma/migrations/20260330085217_add_battle_limits/migration.sql
@@ -0,0 +1,3 @@
+-- AlterTable
+ALTER TABLE "RefinementProfile" ADD COLUMN     "dailyBattleCount" INTEGER NOT NULL DEFAULT 0,
+ADD COLUMN     "lastBattleReset" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP;
diff --git a/prisma/migrations/20260330085711_externalize_balance/migration.sql b/prisma/migrations/20260330085711_externalize_balance/migration.sql
new file mode 100644
index 0000000..3203e80
--- /dev/null
+++ b/prisma/migrations/20260330085711_externalize_balance/migration.sql
@@ -0,0 +1,32 @@
+-- CreateTable
+CREATE TABLE "RefinementLevelConfig" (
+    "level" INTEGER NOT NULL,
+    "successRate" DOUBLE PRECISION NOT NULL,
+    "destroyRate" DOUBLE PRECISION NOT NULL,
+    "sellMultiplier" DOUBLE PRECISION NOT NULL,
+    "cost" INTEGER NOT NULL,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "RefinementLevelConfig_pkey" PRIMARY KEY ("level")
+);
+
+-- CreateTable
+CREATE TABLE "RefinementBattleConfig" (
+    "levelGap" INTEGER NOT NULL,
+    "winRate" DOUBLE PRECISION NOT NULL,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "RefinementBattleConfig_pkey" PRIMARY KEY ("levelGap")
+);
+
+-- CreateTable
+CREATE TABLE "RefinementSystemConfig" (
+    "key" TEXT NOT NULL,
+    "value" TEXT NOT NULL,
+    "description" TEXT,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "RefinementSystemConfig_pkey" PRIMARY KEY ("key")
+);
diff --git a/prisma/migrations/migration_lock.toml b/prisma/migrations/migration_lock.toml
index 648c57f..044d57c 100644
--- a/prisma/migrations/migration_lock.toml
+++ b/prisma/migrations/migration_lock.toml
@@ -1,3 +1,3 @@
 # Please do not edit this file manually
 # It should be added in your version-control system (e.g., Git)
-provider = "postgresql"
\ No newline at end of file
+provider = "postgresql"
diff --git a/prisma/seed.ts b/prisma/seed.ts
new file mode 100644
index 0000000..e4bf505
--- /dev/null
+++ b/prisma/seed.ts
@@ -0,0 +1,116 @@
+import { Pool } from 'pg';
+import { PrismaPg } from '@prisma/adapter-pg';
+import { PrismaClient } from '@prisma/client';
+import 'dotenv/config';
+
+const pool = new Pool({ connectionString: process.env.DATABASE_URL });
+const adapter = new PrismaPg(pool);
+const prisma = new PrismaClient({ adapter });
+
+async function main() {
+  console.log('🌱 Start seeding refinement balance data...');
+
+  // 1. Refinement System Config (Global)
+  const systemConfigs = [
+    { key: 'MAX_LEVEL', value: '25', description: 'Maximum weapon level' },
+    { key: 'START_GOLD', value: '1000', description: 'Initial gold for new players' },
+    { key: 'CHECKIN_GOLD', value: '500', description: 'Gold awarded for daily check-in' },
+    { key: 'DAILY_BATTLE_LIMIT', value: '10', description: 'Maximum battles per day' },
+    { key: 'INVERSE_REWARD_MULTIPLIER', value: '2.0', description: 'Base multiplier for battle rewards' },
+    { key: 'REWARD_RANDOM_MIN', value: '0.8', description: 'Minimum random factor for rewards' },
+    { key: 'REWARD_RANDOM_MAX', value: '1.2', description: 'Maximum random factor for rewards' },
+  ];
+
+  for (const config of systemConfigs) {
+    await prisma.refinementSystemConfig.upsert({
+      where: { key: config.key },
+      update: config,
+      create: config,
+    });
+  }
+
+  // 2. Refinement Level Config (0-25)
+  const levelConfigs = [];
+  for (let l = 0; l <= 25; l++) {
+    let successRate = 0;
+    if (l === 0) successRate = 1.0;
+    else if (l === 1) successRate = 0.98;
+    else if (l === 2) successRate = 0.95;
+    else if (l === 3) successRate = 0.92;
+    else if (l === 4) successRate = 0.90;
+    else if (l === 5) successRate = 0.05;
+    else if (l === 6) successRate = 0.04;
+    else if (l === 7) successRate = 0.03;
+    else if (l === 8) successRate = 0.02;
+    else if (l < 10) successRate = 0.01;
+    else if (l < 20) successRate = 0.001;
+    else successRate = 0.0001;
+
+    const cost = Math.floor(10 * Math.pow(1.6, l));
+    const destroyRate = l * 0.015;
+    const sellMultiplier = l < 5 ? 2.0 : 2 + (l - 4) * 10;
+
+    levelConfigs.push({
+      level: l,
+      successRate,
+      destroyRate,
+      cost,
+      sellMultiplier,
+    });
+  }
+
+  for (const config of levelConfigs) {
+    await prisma.refinementLevelConfig.upsert({
+      where: { level: config.level },
+      update: config,
+      create: config,
+    });
+  }
+
+  // 3. Refinement Battle Config (Gap)
+  const battleConfigs = [];
+  
+  for (let g = 0; g <= 25; g++) {
+    battleConfigs.push({ gap: g, winRate: Math.min(0.99, 0.5 + g * 0.05) });
+  }
+
+  const negativeGaps = [
+    { gap: -1, rate: 0.4 },
+    { gap: -2, rate: 0.3 },
+    { gap: -3, rate: 0.2 },
+    { gap: -4, rate: 0.1 },
+    { gap: -5, rate: 0.05 },
+    { gap: -6, rate: 0.04 },
+    { gap: -7, rate: 0.03 },
+    { gap: -8, rate: 0.02 },
+    { gap: -9, rate: 0.01 },
+  ];
+
+  for (const n of negativeGaps) {
+    battleConfigs.push({ gap: n.gap, winRate: n.rate });
+  }
+
+  for (let g = -10; g >= -25; g--) {
+    battleConfigs.push({ gap: g, winRate: 0 });
+  }
+
+  for (const config of battleConfigs) {
+    await prisma.refinementBattleConfig.upsert({
+      where: { levelGap: config.gap },
+      update: { winRate: config.winRate },
+      create: { levelGap: config.gap, winRate: config.winRate },
+    });
+  }
+
+  console.log('✅ Seeding completed!');
+}
+
+main()
+  .catch((e) => {
+    console.error(e);
+    process.exit(1);
+  })
+  .finally(async () => {
+    await prisma.$disconnect();
+    await pool.end();
+  });
diff --git a/schema_base.prisma b/schema_base.prisma
new file mode 100644
index 0000000..e69de29
diff --git a/schema_feature.prisma b/schema_feature.prisma
new file mode 100644
index 0000000..e69de29
diff --git a/schema_main.prisma b/schema_main.prisma
new file mode 100644
index 0000000..e69de29
diff --git a/src/commands/minigame.ts b/src/commands/minigame.ts
new file mode 100644
index 0000000..7fb9086
--- /dev/null
+++ b/src/commands/minigame.ts
@@ -0,0 +1,133 @@
+import { 
+  SlashCommandBuilder, 
+  ChatInputCommandInteraction, 
+  PermissionFlagsBits, 
+  EmbedBuilder,
+  Colors,
+  ChannelType
+} from 'discord.js';
+import { prisma } from '../database';
+import { t, SupportedLocale } from '../i18n';
+import { MINI_GAMES, getAllMiniGames } from '../services/MiniGameRegistry';
+
+export default {
+  data: new SlashCommandBuilder()
+    .setName('minigame')
+    .setDescription('Manage mini-games for the server.')
+    .setDescriptionLocalizations({
+      ko: '서버의 미니게임을 관리합니다.',
+    })
+    .setDefaultMemberPermissions(PermissionFlagsBits.Administrator)
+    // --- Toggle Subcommand ---
+    .addSubcommand(subcommand =>
+      subcommand
+        .setName('toggle')
+        .setDescription('Enable or disable a specific mini-game.')
+        .addStringOption(option =>
+          option.setName('game')
+            .setDescription('Mini-game to toggle')
+            .setRequired(true)
+            .addChoices(...Object.values(MINI_GAMES).map(g => ({ name: g.name, value: g.key })))
+        )
+        .addBooleanOption(option =>
+          option.setName('enable')
+            .setDescription('Whether to enable the mini-game')
+            .setRequired(true)
+        )
+    )
+    // --- Status Subcommand ---
+    .addSubcommand(subcommand =>
+      subcommand
+        .setName('status')
+        .setDescription('View the current status of all mini-games.')
+    )
+    // --- Channel Subcommand ---
+    .addSubcommand(subcommand =>
+      subcommand
+        .setName('channel')
+        .setDescription('Set a dedicated channel for a mini-game.')
+        .addStringOption(option =>
+          option.setName('game')
+            .setDescription('Mini-game to set channel for')
+            .setRequired(true)
+            .addChoices(...Object.values(MINI_GAMES).map(g => ({ name: g.name, value: g.key })))
+        )
+        .addChannelOption(option =>
+          option.setName('channel')
+            .setDescription('The channel to use (empty to allow all)')
+            .addChannelTypes(ChannelType.GuildText)
+        )
+    ),
+
+  async execute(interaction: ChatInputCommandInteraction, locale: SupportedLocale) {
+    if (!interaction.guildId) return;
+    const subcommand = interaction.options.getSubcommand();
+
+    if (subcommand === 'toggle') {
+      const gameKey = interaction.options.getString('game', true);
+      const enable = interaction.options.getBoolean('enable', true);
+
+      await prisma.miniGameConfig.upsert({
+        where: { guildId_gameKey: { guildId: interaction.guildId, gameKey } },
+        update: { enabled: enable },
+        create: { guildId: interaction.guildId, gameKey, enabled: enable },
+      });
+
+      const game = MINI_GAMES[gameKey];
+      const state = enable ? '활성화' : '비활성화';
+      
+      const embed = new EmbedBuilder()
+        .setColor(enable ? Colors.Green : Colors.Grey)
+        .setTitle('🎮 미니게임 설정 변경')
+        .setDescription(`${game.name} 미니게임이 **${state}**되었습니다.`);
+
+      return interaction.reply({ embeds: [embed], ephemeral: true });
+    }
+
+    if (subcommand === 'status') {
+      const configs = await prisma.miniGameConfig.findMany({
+        where: { guildId: interaction.guildId },
+      });
+
+      const embed = new EmbedBuilder()
+        .setColor(Colors.Blue)
+        .setTitle('🎮 미니게임 현황')
+        .setDescription('현재 서버의 미니게임 활성화 상태입니다.');
+
+      getAllMiniGames().forEach(game => {
+        const config = configs.find(c => c.gameKey === game.key);
+        const isEnabled = config?.enabled ?? false;
+        const channel = config?.channelId ? `<#${config.channelId}>` : '모든 채널';
+        
+        embed.addFields({
+          name: game.name,
+          value: `상태: ${isEnabled ? '✅ 활성' : '❌ 비활성'}\n채널: ${channel}`,
+          inline: true,
+        });
+      });
+
+      return interaction.reply({ embeds: [embed], ephemeral: true });
+    }
+
+    if (subcommand === 'channel') {
+      const gameKey = interaction.options.getString('game', true);
+      const channel = interaction.options.getChannel('channel');
+
+      await prisma.miniGameConfig.upsert({
+        where: { guildId_gameKey: { guildId: interaction.guildId, gameKey } },
+        update: { channelId: channel?.id || null },
+        create: { guildId: interaction.guildId, gameKey, channelId: channel?.id || null },
+      });
+
+      const game = MINI_GAMES[gameKey];
+      const channelMsg = channel ? `<#${channel.id}>` : '모든 채널';
+
+      const embed = new EmbedBuilder()
+        .setColor(Colors.Gold)
+        .setTitle('🎮 미니게임 채널 설정')
+        .setDescription(`${game.name} 미니게임 전용 채널이 **${channelMsg}**로 설정되었습니다.`);
+
+      return interaction.reply({ embeds: [embed], ephemeral: true });
+    }
+  },
+};
diff --git a/src/commands/refine.ts b/src/commands/refine.ts
new file mode 100644
index 0000000..b576f9e
--- /dev/null
+++ b/src/commands/refine.ts
@@ -0,0 +1,277 @@
+import { 
+  SlashCommandBuilder, 
+  ChatInputCommandInteraction, 
+  EmbedBuilder,
+  Colors,
+  ButtonBuilder,
+  ButtonStyle,
+  ActionRowBuilder,
+  ComponentType
+} from 'discord.js';
+import { prisma } from '../database';
+import { SupportedLocale } from '../i18n';
+import { RefinementService } from '../services/RefinementService';
+import { FeverService } from '../services/FeverService';
+
+export default {
+  data: new SlashCommandBuilder()
+    .setName('refine')
+    .setDescription('Mini-game: Refinement')
+    .setDescriptionLocalizations({
+      ko: '미니게임: 재련 (무기 강화 및 전투)',
+    })
+    // --- Try Subcommand ---
+    .addSubcommand(subcommand =>
+      subcommand
+        .setName('try')
+        .setDescription('Try to refine your weapon.')
+        .setDescriptionLocalizations({ ko: '무기 재련을 시도합니다.' })
+    )
+    // --- Battle Subcommand ---
+    .addSubcommand(subcommand =>
+      subcommand
+        .setName('battle')
+        .setDescription('Battle with another user.')
+        .setDescriptionLocalizations({ ko: '다른 유저와 전투를 수행합니다.' })
+        .addUserOption(option =>
+          option.setName('target')
+            .setDescription('The user to attack')
+            .setRequired(true)
+        )
+    )
+    // --- Checkin Subcommand ---
+    .addSubcommand(subcommand =>
+      subcommand
+        .setName('checkin')
+        .setDescription('Daily check-in to get gold.')
+        .setDescriptionLocalizations({ ko: '일일 출석 및 골드를 수령합니다.' })
+    )
+    // --- Profile Subcommand ---
+    .addSubcommand(subcommand =>
+      subcommand
+        .setName('profile')
+        .setDescription('View refinement profile.')
+        .setDescriptionLocalizations({ ko: '재련 프로필을 확인합니다.' })
+        .addUserOption(option =>
+          option.setName('user')
+            .setDescription('User to view')
+        )
+    )
+    // --- Ranking Subcommand ---
+    .addSubcommand(subcommand =>
+      subcommand
+        .setName('ranking')
+        .setDescription('View server rankings.')
+        .setDescriptionLocalizations({ ko: '서버 랭킹을 확인합니다.' })
+        .addStringOption(option =>
+          option.setName('type')
+            .setDescription('Ranking type')
+            .setRequired(true)
+            .addChoices(
+              { name: '최대 강화 단계', value: 'max_level' },
+              { name: '승률', value: 'win_rate' },
+            )
+        )
+    )
+    // --- Sell Subcommand ---
+    .addSubcommand(subcommand =>
+      subcommand
+        .setName('sell')
+        .setDescription('Sell your weapon and reset to level 0.')
+        .setDescriptionLocalizations({ ko: '무기를 판매하고 0단계로 회귀합니다.' })
+    )
+    // --- Help Subcommand ---
+    .addSubcommand(subcommand =>
+      subcommand
+        .setName('help')
+        .setDescription('Get help about the refinement game.')
+        .setDescriptionLocalizations({ ko: '재련 게임 도움말을 확인합니다.' })
+    ),
+
+  async execute(interaction: ChatInputCommandInteraction, locale: SupportedLocale) {
+    if (!interaction.guildId) return;
+
+    // 1. 미니게임 활성화 및 전용 채널 체크
+    const config = await prisma.miniGameConfig.findUnique({
+      where: { guildId_gameKey: { guildId: interaction.guildId, gameKey: 'refinement' } }
+    });
+
+    if (!config || !config.enabled) {
+      return interaction.reply({ content: '❌ 이 서버에서는 재련 미니게임이 비활성화되어 있습니다.', ephemeral: true });
+    }
+
+    if (config.channelId && config.channelId !== interaction.channelId) {
+      return interaction.reply({ content: `❌ 재련 미니게임은 <#${config.channelId}> 채널에서만 이용 가능합니다.`, ephemeral: true });
+    }
+
+    const subcommand = interaction.options.getSubcommand();
+
+    // --- TRY ---
+    if (subcommand === 'try') {
+      try {
+        const result = await RefinementService.tryRefine(interaction.user.id, interaction.guildId);
+        const fever = await FeverService.getFeverBonus(interaction.guildId);
+
+        const embed = new EmbedBuilder()
+          .setTitle(result.success ? '✨ 재련 성공!' : (result.destroyed ? '🧨 무기 파괴!' : '❌ 재련 실패...'))
+          .setColor(result.success ? Colors.Green : (result.destroyed ? Colors.Red : Colors.Grey))
+          .addFields(
+            { name: '강화 단계', value: `${result.levelBefore} → **${result.levelAfter}**`, inline: true },
+            { name: '비용', value: `${result.cost} G`, inline: true },
+            { name: '잔액', value: `${result.remainingGold} G`, inline: true }
+          );
+
+        if (fever.active) {
+          embed.setFooter({ text: `🔥 피버 타임 활성화 중! (성공률 +${fever.bonusRate * 100}%)` });
+        }
+
+        const retryBtn = new ButtonBuilder()
+          .setCustomId(`refine_try_again:${interaction.user.id}`)
+          .setLabel('다시 시도')
+          .setStyle(ButtonStyle.Primary);
+
+        const row = new ActionRowBuilder<ButtonBuilder>().addComponents(retryBtn);
+
+        return interaction.reply({ embeds: [embed], components: [row] });
+      } catch (err: any) {
+        return interaction.reply({ content: `❌ 오류: ${err.message}`, ephemeral: true });
+      }
+    }
+
+    // --- BATTLE ---
+    if (subcommand === 'battle') {
+      const targetUser = interaction.options.getUser('target', true);
+      if (targetUser.id === interaction.user.id) {
+        return interaction.reply({ content: '❌ 자신을 공격할 수 없습니다.', ephemeral: true });
+      }
+      if (targetUser.bot) {
+        return interaction.reply({ content: '❌ 봇과 전투할 수 없습니다.', ephemeral: true });
+      }
+
+      try {
+        const result = await RefinementService.startBattle(interaction.user.id, targetUser.id, interaction.guildId);
+        
+        const embed = new EmbedBuilder()
+          .setTitle('⚔️ 전투 결과')
+          .setColor(result.winnerId === interaction.user.id ? Colors.Gold : Colors.Red)
+          .setDescription(`<@${result.attackerId}> 님과 <@${result.targetId}> 님의 대결!`)
+          .addFields(
+            { name: '승자', value: `<@${result.winnerId}>`, inline: false },
+            { name: '패자', value: `<@${result.loserId}>`, inline: false },
+            { name: '보상', value: `${result.reward} G`, inline: true },
+            { name: '내 단계', value: `${result.attackerLevel}강`, inline: true },
+            { name: '상대 단계', value: `${result.targetLevel}강`, inline: true }
+          );
+
+        if (result.destroyed) {
+          embed.addFields({ name: '🧨 무기 파괴', value: '공격자가 내구도 0인 상태에서 공격하여 무기가 완전히 파괴되었습니다!', inline: false });
+        } else {
+          embed.addFields({ name: '🛡️ 내구도', value: `나: ${result.attackerDurability} | 상대: ${result.targetDurability}`, inline: false });
+          if (result.attackerDurability <= 0) embed.setFooter({ text: '⚠️ [경고] 무기가 전투 불능이 되었습니다. 내구도 0에서 다시 공격하면 파괴됩니다!' });
+        }
+
+        return interaction.reply({ embeds: [embed] });
+      } catch (err: any) {
+        return interaction.reply({ content: `❌ 오류: ${err.message}`, ephemeral: true });
+      }
+    }
+
+    // --- CHECKIN ---
+    if (subcommand === 'checkin') {
+      try {
+        const res = await RefinementService.checkIn(interaction.user.id, interaction.guildId);
+        return interaction.reply({ content: `✅ 출석 완료! **${res.goldAdded} G**를 수령했습니다. (총: ${res.totalGold} G)`, ephemeral: true });
+      } catch (err: any) {
+        return interaction.reply({ content: `❌ 오류: ${err.message}`, ephemeral: true });
+      }
+    }
+
+    // --- PROFILE ---
+    if (subcommand === 'profile') {
+      const targetUser = interaction.options.getUser('user') || interaction.user;
+      const profile = await RefinementService.getProfile(targetUser.id, interaction.guildId);
+
+      const maxDurability = RefinementService.getMaxDurability(profile.weaponLevel);
+      const embed = new EmbedBuilder()
+        .setTitle(`👤 ${targetUser.username} 님의 재련 프로필`)
+        .setColor(Colors.Blue)
+        .setThumbnail(targetUser.displayAvatarURL())
+        .addFields(
+          { name: '현재 무기', value: `${profile.weaponLevel} 단계`, inline: true },
+          { name: '최대 무기', value: `${profile.maxWeaponLevel} 단계`, inline: true },
+          { name: '소지 골드', value: `${profile.gold} G`, inline: true },
+          { name: '내구도', value: `${profile.durability} / ${maxDurability}`, inline: true },
+          { name: '전투 상태', value: profile.isDisabled ? '❌ 전투 불능' : '✅ 양호', inline: true },
+          { name: '일일 공격', value: `${profile.dailyBattleCount} / 10`, inline: true },
+          { name: '출석', value: profile.lastCheckIn ? profile.lastCheckIn.toLocaleDateString() : '미기록', inline: true },
+          { name: '통계', value: `시도: ${profile.tryCount} | 성공: ${profile.successCount} | 실패: ${profile.failCount} | 파괴: ${profile.destroyCount}`, inline: false },
+          { name: '전투', value: `승리: ${profile.battleWin} | 패배: ${profile.battleLoss}`, inline: false }
+        );
+
+      return interaction.reply({ embeds: [embed] });
+    }
+
+    // --- RANKING ---
+    if (subcommand === 'ranking') {
+      const type = interaction.options.getString('type', true);
+      const ranking = await prisma.refinementProfile.findMany({
+        where: { guildId: interaction.guildId },
+        orderBy: type === 'max_level' ? { maxWeaponLevel: 'desc' } : undefined,
+        take: 10
+      });
+
+      let rankingList = ranking;
+      if (type === 'win_rate') {
+        rankingList = ranking
+          .sort((a, b) => {
+            const rateA = a.battleWin / (a.battleWin + a.battleLoss || 1);
+            const rateB = b.battleWin / (b.battleWin + b.battleLoss || 1);
+            return rateB - rateA;
+          })
+          .slice(0, 10);
+      }
+
+      const embed = new EmbedBuilder()
+        .setTitle(type === 'max_level' ? '🏆 서버 최고 강화 랭킹' : '🏆 서버 최고 승률 랭킹')
+        .setColor(Colors.Gold);
+
+      const listStr = rankingList.map((p, i) => {
+        const val = type === 'max_level' 
+          ? `${p.maxWeaponLevel}단계` 
+          : `${Math.round((p.battleWin / (p.battleWin + p.battleLoss || 1)) * 100)}% (${p.battleWin}승)`;
+        return `${i + 1}. <@${p.userId}> - **${val}**`;
+      }).join('\n') || '데이터가 없습니다.';
+
+      embed.setDescription(listStr);
+      return interaction.reply({ embeds: [embed] });
+    }
+
+    // --- SELL ---
+    if (subcommand === 'sell') {
+      try {
+        const res = await RefinementService.sellWeapon(interaction.user.id, interaction.guildId);
+        return interaction.reply({ content: `💰 **${res.level}단계** 무기를 판매하고 **${res.price} G**를 받았습니다. (총: ${res.gold} G)`, ephemeral: true });
+      } catch (err: any) {
+        return interaction.reply({ content: `❌ 오류: ${err.message}`, ephemeral: true });
+      }
+    }
+
+    // --- HELP ---
+    if (subcommand === 'help') {
+      const embed = new EmbedBuilder()
+        .setTitle('🎮 재련 미니게임 도움말')
+        .setColor(Colors.White)
+        .setDescription('무기를 강화하고 다른 유저와 전투하며 강력한 전사가 되어보세요!')
+        .addFields(
+          { name: '🛠️ 재련 (/refine try)', value: '골드를 소모하여 강화합니다. 5강부터 확률이 극악이며, 성공 시 **내구도가 최대치(10+레벨)**로 수리됩니다.' },
+          { name: '⚔️ 전투 (/refine battle)', value: '다른 유저를 공격합니다. **일일 10회 제한**이 있으며, 5강 이상 차이나는 강자 공격 시 승률이 급락(최대 0%)합니다.' },
+          { name: '🛡️ 내구도 및 수명', value: '단계가 높을수록 최대 내구도가 증가하여 더 오래 사용할 수 있습니다. 내구도 0에서 공격 시 무기가 파괴됩니다.' },
+          { name: '📅 출석 (/refine checkin)', value: '매일 한 번 골드를 수령할 수 있습니다.' },
+          { name: '💰 판매 (/refine sell)', value: '무기를 팔고 0단계로 돌아갑니다. 고강화 무기는 난이도(기대값)에 비례해 **수억 골드**의 가치를 가집니다.' },
+          { name: '🔥 피버 타임', value: '서버가 가장 활발한 시간대에 재련 성공 확률이 10% 증가합니다!' }
+        );
+
+      return interaction.reply({ embeds: [embed] });
+    }
+  },
+};
diff --git a/src/database/index.ts b/src/database/index.ts
index 2109469..474e501 100644
--- a/src/database/index.ts
+++ b/src/database/index.ts
@@ -1,14 +1,24 @@
+import { Pool } from 'pg';
+import { PrismaPg } from '@prisma/adapter-pg';
 import { PrismaClient } from '@prisma/client';
 import { logger } from '../utils/logger';
 
+// Prisma 7 requires a driver adapter for direct database connections.
+const pool = new Pool({ connectionString: process.env.DATABASE_URL });
+const adapter = new PrismaPg(pool);
+
 export const prisma = new PrismaClient({
+  adapter,
   log: ['warn', 'error'],
 });
 
 export const connectDB = async () => {
   try {
-    await prisma.$connect();
-    logger.info('Connected to PostgreSQL successfully.');
+    // Adapter-based client connects when first used, 
+    // but we can test the pool connection here.
+    const client = await pool.connect();
+    client.release();
+    logger.info('Connected to PostgreSQL successfully via Driver Adapter.');
   } catch (error) {
     logger.error('Failed to connect to PostgreSQL:', error);
     process.exit(1);
diff --git a/src/events/interactionCreate.ts b/src/events/interactionCreate.ts
index 68e3ef2..c788c49 100644
--- a/src/events/interactionCreate.ts
+++ b/src/events/interactionCreate.ts
@@ -35,6 +35,13 @@ export default {
         await handleSetupWizardInteraction(interaction, locale);
       }, locale);
     }
+    else if (interaction.isButton() && interaction.customId.startsWith('refine_')) {
+      const { handleRefinementInteraction } = require('../interactions/handlers/refinementHandler');
+      const locale = await getInteractionLocale(interaction);
+      await withErrorHandler(interaction, async () => {
+        await handleRefinementInteraction(interaction, locale);
+      }, locale);
+    }
     else if (interaction.isStringSelectMenu()) {
       const customId = interaction.customId;
       
diff --git a/src/events/messageCreate.ts b/src/events/messageCreate.ts
index 6bca730..974f158 100644
--- a/src/events/messageCreate.ts
+++ b/src/events/messageCreate.ts
@@ -2,6 +2,7 @@ import { Events, Message } from 'discord.js';
 import { MimicService } from '../services/MimicService';
 import { BigEmojiService } from '../services/BigEmojiService';
 import { prisma } from '../database';
+import { ActivityTrackerService } from '../services/ActivityTrackerService';
 
 export default {
   name: Events.MessageCreate,
@@ -9,6 +10,9 @@ export default {
   async execute(message: Message) {
     if (!message.guildId || message.author.bot) return;
 
+    // 활동 추적 기록
+    await ActivityTrackerService.recordActivity(message.guildId);
+
     const config = await prisma.guildConfig.findUnique({
       where: { guildId: message.guildId }
     });
diff --git a/src/interactions/handlers/refinementHandler.ts b/src/interactions/handlers/refinementHandler.ts
new file mode 100644
index 0000000..6c71882
--- /dev/null
+++ b/src/interactions/handlers/refinementHandler.ts
@@ -0,0 +1,61 @@
+import { ButtonInteraction, EmbedBuilder, ActionRowBuilder, ButtonBuilder, ButtonStyle, Colors } from 'discord.js';
+import { RefinementService } from '../../services/RefinementService';
+import { FeverService } from '../../services/FeverService';
+import { prisma } from '../../database';
+import { SupportedLocale } from '../../i18n';
+
+export const handleRefinementInteraction = async (interaction: ButtonInteraction, locale: SupportedLocale) => {
+  const customId = interaction.customId;
+
+  if (customId.startsWith('refine_try_again:')) {
+    const parts = customId.split(':');
+    const ownerId = parts[1];
+
+    if (interaction.user.id !== ownerId) {
+      return interaction.reply({ content: '❌ 본인의 재련 결과만 다시 시도할 수 있습니다.', ephemeral: true });
+    }
+
+    // 미니게임 활성화 및 채널 체크
+    const config = await prisma.miniGameConfig.findUnique({
+      where: { guildId_gameKey: { guildId: interaction.guildId!, gameKey: 'refinement' } }
+    });
+
+    if (!config || !config.enabled) {
+      return interaction.reply({ content: '❌ 이 서버에서는 재련 미니게임이 비활성화되어 있습니다.', ephemeral: true });
+    }
+
+    if (config.channelId && config.channelId !== interaction.channelId) {
+      return interaction.reply({ content: `❌ 재련 미니게임은 <#${config.channelId}> 채널에서만 이용 가능합니다.`, ephemeral: true });
+    }
+
+    try {
+      const result = await RefinementService.tryRefine(interaction.user.id, interaction.guildId!);
+      const fever = await FeverService.getFeverBonus(interaction.guildId!);
+
+      const embed = new EmbedBuilder()
+        .setTitle(result.success ? '✨ 재련 성공!' : (result.destroyed ? '🧨 무기 파괴!' : '❌ 재련 실패...'))
+        .setColor(result.success ? Colors.Green : (result.destroyed ? Colors.Red : Colors.Grey))
+        .addFields(
+          { name: '강화 단계', value: `${result.levelBefore} → **${result.levelAfter}**`, inline: true },
+          { name: '비용', value: `${result.cost} G`, inline: true },
+          { name: '잔액', value: `${result.remainingGold} G`, inline: true }
+        );
+
+      if (fever.active) {
+        embed.setFooter({ text: `🔥 피버 타임 활성화 중! (성공률 +${fever.bonusRate * 100}%)` });
+      }
+
+      const retryBtn = new ButtonBuilder()
+        .setCustomId(`refine_try_again:${interaction.user.id}`)
+        .setLabel('다시 시도')
+        .setStyle(ButtonStyle.Primary);
+
+      const row = new ActionRowBuilder<ButtonBuilder>().addComponents(retryBtn);
+
+      // 이미 사용된 버튼 메시지를 업데이트
+      return interaction.update({ embeds: [embed], components: [row] });
+    } catch (err: any) {
+      return interaction.reply({ content: `❌ 오류: ${err.message}`, ephemeral: true });
+    }
+  }
+};
diff --git a/src/services/ActivityTrackerService.ts b/src/services/ActivityTrackerService.ts
new file mode 100644
index 0000000..c123ea1
--- /dev/null
+++ b/src/services/ActivityTrackerService.ts
@@ -0,0 +1,57 @@
+import { prisma } from '../database';
+import { logger } from '../utils/logger';
+
+export class ActivityTrackerService {
+  /**
+   * 메시지 활동을 기록합니다.
+   * @param guildId 서버 ID
+   */
+  public static async recordActivity(guildId: string): Promise<void> {
+    try {
+      const now = new Date();
+      const hour = now.getUTCHours();
+      const dayOfWeek = now.getUTCDay();
+      
+      // 이번 주의 시작일 (일요일 00:00:00)
+      const weekStart = new Date(now);
+      weekStart.setUTCDate(now.getUTCDate() - dayOfWeek);
+      weekStart.setUTCHours(0, 0, 0, 0);
+
+      await prisma.activityLog.upsert({
+        where: {
+          guildId_hour_dayOfWeek_weekStart: {
+            guildId,
+            hour,
+            dayOfWeek,
+            weekStart,
+          },
+        },
+        update: {
+          count: { increment: 1 },
+        },
+        create: {
+          guildId,
+          hour,
+          dayOfWeek,
+          weekStart,
+          count: 1,
+        },
+      });
+    } catch (err) {
+      logger.error(`Failed to record activity for guild ${guildId}:`, err);
+    }
+  }
+
+  /**
+   * 최근 활동 데이터를 기반으로 피크 시간대를 분석합니다. (FeverService에서 사용)
+   */
+  public static async getPeakHour(guildId: string): Promise<number | null> {
+    const logs = await prisma.activityLog.findMany({
+      where: { guildId },
+      orderBy: { count: 'desc' },
+      take: 1
+    });
+
+    return logs.length > 0 ? logs[0].hour : null;
+  }
+}
diff --git a/src/services/FeverService.ts b/src/services/FeverService.ts
new file mode 100644
index 0000000..3b52885
--- /dev/null
+++ b/src/services/FeverService.ts
@@ -0,0 +1,82 @@
+import { prisma } from '../database';
+import { logger } from '../utils/logger';
+import { ActivityTrackerService } from './ActivityTrackerService';
+
+export class FeverService {
+  private static BONUS_RATE = 0.1; // +10% 성공률
+
+  /**
+   * 봇 시작 시 피버 스케줄러를 가동합니다. (1시간마다 체크)
+   */
+  public static startScheduler() {
+    // 1시간마다 전 서버의 피버 상태를 갱신하거나 분석을 시도하는 스케줄러 (간단히 setInterval)
+    setInterval(async () => {
+      try {
+        const guilds = await prisma.guildConfig.findMany({ select: { guildId: true } });
+        for (const guild of guilds) {
+          await this.updateFeverState(guild.guildId);
+        }
+      } catch (err) {
+        logger.error('Fever scheduler error:', err);
+      }
+    }, 1000 * 60 * 60); // 1 hour
+  }
+
+  /**
+   * 개별 서버의 피버 상태를 분석하고 갱신합니다.
+   */
+  public static async updateFeverState(guildId: string): Promise<void> {
+    const peakHour = await ActivityTrackerService.getPeakHour(guildId);
+    if (peakHour === null) return;
+
+    const now = new Date();
+    const currentHour = now.getUTCHours();
+
+    // 현재 시간이 피크 시간대라면 피버 활성화 (1시간)
+    const isActive = currentHour === peakHour;
+    const expiresAt = isActive ? new Date(now.getTime() + 1000 * 60 * 60) : null;
+
+    await prisma.feverState.upsert({
+      where: { guildId },
+      update: {
+        isActive,
+        peakHour,
+        expiresAt,
+        bonusRate: this.BONUS_RATE,
+      },
+      create: {
+        guildId,
+        isActive,
+        peakHour,
+        expiresAt,
+        bonusRate: this.BONUS_RATE,
+      }
+    });
+
+    if (isActive) {
+      logger.info(`[Fever] Activated for guild ${guildId} (Peak Hour: ${peakHour})`);
+    }
+  }
+
+  /**
+   * 현재 피버 보너스 정보를 조회합니다.
+   */
+  public static async getFeverBonus(guildId: string): Promise<{ active: boolean; bonusRate: number }> {
+    const fever = await prisma.feverState.findUnique({ where: { guildId } });
+    
+    if (!fever || !fever.isActive || !fever.expiresAt) {
+      return { active: false, bonusRate: 0 };
+    }
+
+    // 만료 체크
+    if (new Date() > fever.expiresAt) {
+      await prisma.feverState.update({
+        where: { guildId },
+        data: { isActive: false }
+      });
+      return { active: false, bonusRate: 0 };
+    }
+
+    return { active: true, bonusRate: fever.bonusRate };
+  }
+}
diff --git a/src/services/MiniGameRegistry.ts b/src/services/MiniGameRegistry.ts
new file mode 100644
index 0000000..894e9f6
--- /dev/null
+++ b/src/services/MiniGameRegistry.ts
@@ -0,0 +1,21 @@
+export interface MiniGame {
+  key: string;
+  name: string;
+  description: string;
+}
+
+export const MINI_GAMES: Record<string, MiniGame> = {
+  refinement: {
+    key: 'refinement',
+    name: '재련',
+    description: '무기를 강화하고 다른 유저와 전투하며 골드를 모으는 미니게임입니다.',
+  },
+};
+
+export const getMiniGame = (key: string): MiniGame | undefined => {
+  return MINI_GAMES[key];
+};
+
+export const getAllMiniGames = (): MiniGame[] => {
+  return Object.values(MINI_GAMES);
+};
diff --git a/src/services/RefinementService.ts b/src/services/RefinementService.ts
new file mode 100644
index 0000000..38ae93b
--- /dev/null
+++ b/src/services/RefinementService.ts
@@ -0,0 +1,318 @@
+import { prisma } from '../database';
+import { logger } from '../utils/logger';
+import { FeverService } from './FeverService';
+import { RefinementLevelConfig, RefinementBattleConfig, RefinementSystemConfig } from '@prisma/client';
+
+export interface RefineResult {
+  success: boolean;
+  destroyed: boolean;
+  levelBefore: number;
+  levelAfter: number;
+  cost: number;
+  remainingGold: number;
+}
+
+export interface BattleResult {
+  winnerId: string;
+  loserId: string;
+  attackerId: string;
+  targetId: string;
+  reward: number;
+  attackerLevel: number;
+  targetLevel: number;
+  attackerDurability: number;
+  targetDurability: number;
+  destroyed: boolean; // 공격자 무기 파괴 여부 (내구도 0에서 공격 시)
+}
+
+export class RefinementService {
+  // 캐시 필드
+  private static levelConfigs = new Map<number, RefinementLevelConfig>();
+  private static battleConfigs = new Map<number, number>(); // Gap -> WinRate
+  private static systemConfigs = new Map<string, string>(); // Key -> Value
+  private static isInitialized = false;
+
+  /**
+   * 레벨에 따른 최대 내구도 계산 (10 + level)
+   */
+  public static getMaxDurability(level: number): number {
+    return 10 + level;
+  }
+
+  /**
+   * DB에서 밸런스 설정을 로드하여 메모리에 캐싱
+   */
+  public static async loadConfigs(force: boolean = false) {
+    if (this.isInitialized && !force) return;
+
+    const [levels, battles, systems] = await Promise.all([
+      prisma.refinementLevelConfig.findMany(),
+      prisma.refinementBattleConfig.findMany(),
+      prisma.refinementSystemConfig.findMany(),
+    ]);
+
+    this.levelConfigs.clear();
+    levels.forEach((c: RefinementLevelConfig) => this.levelConfigs.set(c.level, c));
+
+    this.battleConfigs.clear();
+    battles.forEach((c: RefinementBattleConfig) => this.battleConfigs.set(c.levelGap, c.winRate));
+
+    this.systemConfigs.clear();
+    systems.forEach((c: RefinementSystemConfig) => this.systemConfigs.set(c.key, c.value));
+
+    this.isInitialized = true;
+    logger.info(`[Refinement] Loaded ${levels.length} levels, ${battles.length} battle gaps, and ${systems.length} system configs.`);
+  }
+
+  private static getSysConfig(key: string, defaultValue: string): string {
+    return this.systemConfigs.get(key) ?? defaultValue;
+  }
+
+  private static getSysConfigNum(key: string, defaultValue: number): number {
+    const val = this.systemConfigs.get(key);
+    return val ? Number.parseFloat(val) : defaultValue;
+  }
+  
+  /**
+   * 레벨에 따른 강화 비용 가져오기
+   */
+  public static getCost(level: number): number {
+    return this.levelConfigs.get(level)?.cost ?? 999999999;
+  }
+
+  /**
+   * 재련 시도
+   */
+  public static async tryRefine(userId: string, guildId: string): Promise<RefineResult> {
+    await this.loadConfigs();
+    const profile = await this.getOrCreateProfile(userId, guildId);
+    
+    const maxLevel = this.getSysConfigNum('MAX_LEVEL', 25);
+    if (profile.weaponLevel >= maxLevel) {
+      throw new Error(`이미 최대 단계(${maxLevel}강)에 도달했습니다. 무기를 판매하고 다시 시작하세요!`);
+    }
+
+    const levelConfig = this.levelConfigs.get(profile.weaponLevel);
+    if (!levelConfig) throw new Error('강화 정보를 불러올 수 없습니다.');
+
+    const cost = levelConfig.cost;
+
+    if (profile.gold < cost) {
+      throw new Error('골드가 부족합니다.');
+    }
+
+    const fever = await FeverService.getFeverBonus(guildId);
+    const successRate = levelConfig.successRate + (fever.active ? fever.bonusRate : 0);
+    
+    const random = Math.random();
+    const success = random <= successRate;
+    let destroyed = false;
+    let newLevel = profile.weaponLevel;
+    let newDurability = profile.durability;
+
+    if (success) {
+      newLevel = Math.min(maxLevel, profile.weaponLevel + 1);
+      newDurability = this.getMaxDurability(newLevel);
+    } else {
+      const destroyRate = levelConfig.destroyRate;
+      if (Math.random() <= destroyRate) {
+        destroyed = true;
+        newLevel = 0;
+        newDurability = 10;
+      }
+    }
+
+    const updatedProfile = await prisma.refinementProfile.update({
+      where: { userId_guildId: { userId, guildId } },
+      data: {
+        gold: { decrement: cost },
+        weaponLevel: newLevel,
+        durability: newDurability,
+        isDisabled: newDurability > 0 ? false : undefined,
+        maxWeaponLevel: { set: Math.max(profile.maxWeaponLevel, newLevel) },
+        tryCount: { increment: 1 },
+        successCount: success ? { increment: 1 } : undefined,
+        failCount: !success ? { increment: 1 } : undefined,
+        destroyCount: destroyed ? { increment: 1 } : undefined,
+      }
+    });
+
+    return {
+      success,
+      destroyed,
+      levelBefore: profile.weaponLevel,
+      levelAfter: newLevel,
+      cost,
+      remainingGold: updatedProfile.gold,
+    };
+  }
+
+  /**
+   * 전투 수행 (일방적)
+   */
+  public static async startBattle(attackerId: string, targetId: string, guildId: string): Promise<BattleResult> {
+    await this.loadConfigs();
+    const attacker = await this.getOrCreateProfile(attackerId, guildId);
+    const target = await this.getOrCreateProfile(targetId, guildId);
+
+    // 0. 일일 공격 횟수 체크 및 리셋 (KST 기준 자정 리셋)
+    const now = new Date();
+    const lastReset = attacker.lastBattleReset || new Date(0);
+    const isNewDay = now.toDateString() !== lastReset.toDateString();
+
+    const dailyLimit = this.getSysConfigNum('DAILY_BATTLE_LIMIT', 10);
+    let currentDailyCount = isNewDay ? 0 : attacker.dailyBattleCount;
+    if (currentDailyCount >= dailyLimit) {
+      throw new Error(`일일 공격 제한(${dailyLimit}회)에 도달했습니다. 내일 다시 도전하세요!`);
+    }
+
+    if (attacker.weaponLevel === 0 || target.weaponLevel === 0) {
+      throw new Error('0강 무기 소유자는 전투에 참여할 수 없습니다. 최소 1강 이상 강화하세요.');
+    }
+
+    if (attacker.isDisabled) throw new Error('현재 전투 불능 상태입니다. 무기 수리(재련 시도 등)가 필요합니다.');
+    
+    // 1. 승패 확률 가져오기
+    const diff = attacker.weaponLevel - target.weaponLevel;
+    const winRate = this.battleConfigs.get(diff) ?? (diff > 0 ? 0.99 : 0);
+
+    const isAttackerWin = Math.random() < winRate;
+
+    const winnerId = isAttackerWin ? attackerId : targetId;
+    const loserId = isAttackerWin ? targetId : attackerId;
+
+    // 보상 계산: 승리자 역배율 적용 (TargetCost × TargetLevel/WinnerLevel × Multiplier)
+    const levelDiff = Math.abs(attacker.weaponLevel - target.weaponLevel);
+    const winnerLevel = isAttackerWin ? attacker.weaponLevel : target.weaponLevel;
+    const loserLevel = isAttackerWin ? target.weaponLevel : attacker.weaponLevel;
+    const loserCost = this.getCost(loserLevel);
+    
+    const inverseMultiplier = this.getSysConfigNum('INVERSE_REWARD_MULTIPLIER', 2.0);
+    const randomMin = this.getSysConfigNum('REWARD_RANDOM_MIN', 0.8);
+    const randomMax = this.getSysConfigNum('REWARD_RANDOM_MAX', 1.2);
+
+    const ratio = Math.min(1.0, loserLevel / winnerLevel);
+    const baseReward = Math.floor(loserCost * ratio * inverseMultiplier);
+    
+    const randomFactor = randomMin + Math.random() * (randomMax - randomMin);
+    const reward = Math.floor(baseReward * randomFactor) + (levelDiff * 100);
+
+    // 내구도 감소 (양쪽 모두 -1)
+    const newAttackerDurability = Math.max(0, attacker.durability - 1);
+    const newTargetDurability = Math.max(0, target.durability - 1);
+
+    // 무기 파괴/불능 처리
+    const attackerDestroyed = false;
+    
+    await prisma.$transaction([
+      prisma.refinementProfile.update({
+        where: { userId_guildId: { userId: attackerId, guildId } },
+        data: {
+          gold: attacker.gold + (isAttackerWin ? reward : 0),
+          durability: newAttackerDurability,
+          isDisabled: newAttackerDurability <= 0,
+          battleWin: isAttackerWin ? attacker.battleWin + 1 : attacker.battleWin,
+          battleLoss: isAttackerWin ? attacker.battleLoss : attacker.battleLoss + 1,
+          dailyBattleCount: currentDailyCount + 1,
+          lastBattleReset: now,
+        }
+      }),
+      prisma.refinementProfile.update({
+        where: { userId_guildId: { userId: targetId, guildId } },
+        data: {
+          gold: target.gold + (!isAttackerWin ? reward : 0),
+          durability: newTargetDurability,
+          isDisabled: newTargetDurability <= 0,
+          battleWin: !isAttackerWin ? target.battleWin + 1 : target.battleWin,
+          battleLoss: !isAttackerWin ? target.battleLoss : target.battleLoss + 1,
+        }
+      })
+    ]);
+
+    return {
+      winnerId,
+      loserId,
+      attackerId,
+      targetId,
+      reward,
+      attackerLevel: attacker.weaponLevel,
+      targetLevel: target.weaponLevel,
+      attackerDurability: newAttackerDurability,
+      targetDurability: newTargetDurability,
+      destroyed: attackerDestroyed,
+    };
+  }
+
+  /**
+   * 일일 출석
+   */
+  public static async checkIn(userId: string, guildId: string): Promise<{ goldAdded: number; totalGold: number }> {
+    const profile = await this.getOrCreateProfile(userId, guildId);
+    
+    const now = new Date();
+    if (profile.lastCheckIn) {
+      const last = new Date(profile.lastCheckIn);
+      if (last.getUTCFullYear() === now.getUTCFullYear() &&
+          last.getUTCMonth() === now.getUTCMonth() &&
+          last.getUTCDate() === now.getUTCDate()) {
+        throw new Error('오늘은 이미 출석했습니다.');
+      }
+    }
+
+    const checkInGold = this.getSysConfigNum('CHECKIN_GOLD', 500);
+    const updated = await prisma.refinementProfile.update({
+      where: { userId_guildId: { userId, guildId } },
+      data: {
+        gold: { increment: checkInGold },
+        lastCheckIn: now,
+      }
+    });
+
+    return { goldAdded: checkInGold, totalGold: updated.gold };
+  }
+
+  /**
+   * 무기 판매
+   */
+  public static async sellWeapon(userId: string, guildId: string): Promise<{ level: number; price: number; gold: number }> {
+    await this.loadConfigs();
+    const profile = await this.getOrCreateProfile(userId, guildId);
+    const level = profile.weaponLevel;
+    const cost = this.getCost(level);
+    
+    const multiplier = this.levelConfigs.get(level)?.sellMultiplier ?? 1;
+    const price = Math.floor(cost * multiplier);
+    
+    const updated = await prisma.refinementProfile.update({
+      where: { userId_guildId: { userId, guildId } },
+      data: {
+        gold: { increment: price },
+        weaponLevel: 0,
+        durability: 10, // 판매 후 초기화 시 내구도 복구
+        isDisabled: false,
+      }
+    });
+
+    return { level: profile.weaponLevel, price, gold: updated.gold };
+  }
+
+  public static async getProfile(userId: string, guildId: string) {
+    return this.getOrCreateProfile(userId, guildId);
+  }
+
+  private static async getOrCreateProfile(userId: string, guildId: string) {
+    let profile = await prisma.refinementProfile.findUnique({
+      where: { userId_guildId: { userId, guildId } }
+    });
+
+    if (!profile) {
+      await this.loadConfigs();
+      const startGold = this.getSysConfigNum('START_GOLD', 1000);
+      profile = await prisma.refinementProfile.create({
+        data: { userId, guildId, gold: startGold }
+      });
+    }
+
+    return profile;
+  }
+}