diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
new file mode 100644
index 00000000..0f809702
--- /dev/null
+++ b/.github/workflows/deploy.yml
@@ -0,0 +1,53 @@
+name: Java CI/CD with Gradle
+
+on:
+  push:
+    branches: [ "dev" ] # dev 브랜치에 푸시할 때 작동
+  workflow_dispatch: #
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          java-version: '21'
+          distribution: 'temurin'
+          cache: 'gradle' # 캐싱 추가: 빌드 속도가 훨씬 빨라집니다.
+
+      - name: Build with Gradle
+        run: |
+          chmod +x ./gradlew
+          ./gradlew build -x test
+
+      - name: Create .env file from Secret
+        run: |
+          cat <<'EOF' > .env
+          ${{ secrets.ENV_VARIABLES }}
+          EOF
+
+      - name: Copy JAR and .env to EC2
+        uses: appleboy/scp-action@v0.1.7
+        with:
+          host: ${{ secrets.EC2_HOST }}
+          username: ${{ secrets.EC2_USERNAME }}
+          key: ${{ secrets.EC2_SSH_KEY }}
+          # -plain.jar는 배포에 필요 없으므로 제외합니다.
+          source: "build/libs/*-SNAPSHOT.jar, .env"
+          target: "~/"
+          strip_components: 2
+
+      - name: Deploy to EC2
+        uses: appleboy/ssh-action@v1.0.3
+        with:
+          host: ${{ secrets.EC2_HOST }}
+          username: ${{ secrets.EC2_USERNAME }}
+          key: ${{ secrets.EC2_SSH_KEY }}
+          script: |
+            fuser -k 8080/tcp || true 
+            
+            chmod +x ~/start.sh
+            ~/start.sh
\ No newline at end of file
diff --git a/src/main/java/com/swyp/picke/domain/battle/controller/AdminBattleController.java b/src/main/java/com/swyp/picke/domain/battle/controller/AdminBattleController.java
new file mode 100644
index 00000000..b115abc3
--- /dev/null
+++ b/src/main/java/com/swyp/picke/domain/battle/controller/AdminBattleController.java
@@ -0,0 +1,51 @@
+package com.swyp.picke.domain.battle.controller;
+
+import com.swyp.picke.domain.battle.dto.request.AdminBattleCreateRequest;
+import com.swyp.picke.domain.battle.dto.request.AdminBattleUpdateRequest;
+import com.swyp.picke.domain.battle.dto.response.AdminBattleDeleteResponse;
+import com.swyp.picke.domain.battle.dto.response.AdminBattleDetailResponse;
+import com.swyp.picke.domain.battle.service.BattleService;
+import com.swyp.picke.global.common.response.ApiResponse;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import jakarta.validation.Valid;
+import lombok.RequiredArgsConstructor;
+import org.springframework.security.access.prepost.PreAuthorize;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.*;
+
+@Tag(name = "배틀 API (관리자)", description = "배틀 생성/수정/삭제 (관리자 전용)")
+@RestController
+@RequestMapping("/api/v1/admin/battles")
+@RequiredArgsConstructor
+@PreAuthorize("hasRole('ADMIN')")
+public class AdminBattleController {
+
+    private final BattleService battleService;
+
+    @Operation(summary = "배틀 생성")
+    @PostMapping
+    public ApiResponse<AdminBattleDetailResponse> createBattle(
+            @RequestBody @Valid AdminBattleCreateRequest request,
+            @AuthenticationPrincipal Long adminUserId
+    ) {
+        return ApiResponse.onSuccess(battleService.createBattle(request, adminUserId));
+    }
+
+    @Operation(summary = "배틀 수정 (변경 필드만 포함)")
+    @PatchMapping("/{battleId}")
+    public ApiResponse<AdminBattleDetailResponse> updateBattle(
+            @PathVariable Long battleId,
+            @RequestBody @Valid AdminBattleUpdateRequest request
+    ) {
+        return ApiResponse.onSuccess(battleService.updateBattle(battleId, request));
+    }
+
+    @Operation(summary = "배틀 삭제")
+    @DeleteMapping("/{battleId}")
+    public ApiResponse<AdminBattleDeleteResponse> deleteBattle(
+            @PathVariable Long battleId
+    ) {
+        return ApiResponse.onSuccess(battleService.deleteBattle(battleId));
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/com/swyp/picke/domain/battle/dto/request/AdminBattleCreateRequest.java b/src/main/java/com/swyp/picke/domain/battle/dto/request/AdminBattleCreateRequest.java
new file mode 100644
index 00000000..48aa5b4a
--- /dev/null
+++ b/src/main/java/com/swyp/picke/domain/battle/dto/request/AdminBattleCreateRequest.java
@@ -0,0 +1,24 @@
+package com.swyp.picke.domain.battle.dto.request;
+
+import com.swyp.picke.domain.battle.enums.BattleStatus;
+import com.swyp.picke.domain.battle.enums.BattleType;
+import java.time.LocalDate;
+import java.util.List;
+
+public record AdminBattleCreateRequest(
+        String title,
+        String titlePrefix,
+        String titleSuffix,
+        String summary,
+        String description,
+        String thumbnailUrl,
+        BattleType type,
+        BattleStatus status,
+        String itemA,
+        String itemADesc,
+        String itemB,
+        String itemBDesc,
+        LocalDate targetDate,
+        List<Long> tagIds,
+        List<AdminBattleOptionRequest> options
+) {}
\ No newline at end of file
diff --git a/src/main/java/com/swyp/picke/domain/battle/dto/request/AdminBattleOptionRequest.java b/src/main/java/com/swyp/picke/domain/battle/dto/request/AdminBattleOptionRequest.java
new file mode 100644
index 00000000..36c1c212
--- /dev/null
+++ b/src/main/java/com/swyp/picke/domain/battle/dto/request/AdminBattleOptionRequest.java
@@ -0,0 +1,16 @@
+package com.swyp.picke.domain.battle.dto.request;
+
+import com.swyp.picke.domain.battle.enums.BattleOptionLabel;
+
+import java.util.List;
+
+public record AdminBattleOptionRequest(
+        BattleOptionLabel label,
+        String title,
+        String stance,
+        String representative,
+        String quote,
+        String imageUrl,
+        Boolean isCorrect,
+        List<Long> tagIds // 옵션 전용 태그 (철학자, 가치관 - 추후 사용자 유형 분석에 사용)
+) {}
\ No newline at end of file
diff --git a/src/main/java/com/swyp/picke/domain/battle/dto/request/AdminBattleUpdateRequest.java b/src/main/java/com/swyp/picke/domain/battle/dto/request/AdminBattleUpdateRequest.java
new file mode 100644
index 00000000..aa5e4477
--- /dev/null
+++ b/src/main/java/com/swyp/picke/domain/battle/dto/request/AdminBattleUpdateRequest.java
@@ -0,0 +1,23 @@
+package com.swyp.picke.domain.battle.dto.request;
+
+import com.swyp.picke.domain.battle.enums.BattleStatus;
+import java.time.LocalDate;
+import java.util.List;
+
+public record AdminBattleUpdateRequest(
+        String title,
+        String titlePrefix,
+        String titleSuffix,
+        String summary,
+        String description,
+        String thumbnailUrl,
+        String itemA,
+        String itemADesc,
+        String itemB,
+        String itemBDesc,
+        LocalDate targetDate,
+        Integer audioDuration,
+        BattleStatus status,
+        List<Long> tagIds,
+        List<AdminBattleOptionRequest> options
+) {}
\ No newline at end of file
diff --git a/src/main/java/com/swyp/picke/domain/battle/dto/response/AdminBattleDeleteResponse.java b/src/main/java/com/swyp/picke/domain/battle/dto/response/AdminBattleDeleteResponse.java
new file mode 100644
index 00000000..43c64d66
--- /dev/null
+++ b/src/main/java/com/swyp/picke/domain/battle/dto/response/AdminBattleDeleteResponse.java
@@ -0,0 +1,13 @@
+package com.swyp.picke.domain.battle.dto.response;
+
+import java.time.LocalDateTime;
+
+/**
+ * 관리자 - 배틀 삭제 응답
+ * 역할: 배틀이 성공적으로 소프트 딜리트 되었는지 확인하고 삭제 시점을 반환합니다.
+ */
+
+public record AdminBattleDeleteResponse(
+        Boolean success, // 삭제 성공 여부
+        LocalDateTime deletedAt // 삭제 처리된 일시 (Soft Delete)
+) {}
\ No newline at end of file
diff --git a/src/main/java/com/swyp/picke/domain/battle/dto/response/AdminBattleDetailResponse.java b/src/main/java/com/swyp/picke/domain/battle/dto/response/AdminBattleDetailResponse.java
new file mode 100644
index 00000000..fd382332
--- /dev/null
+++ b/src/main/java/com/swyp/picke/domain/battle/dto/response/AdminBattleDetailResponse.java
@@ -0,0 +1,36 @@
+package com.swyp.picke.domain.battle.dto.response;
+
+import com.swyp.picke.domain.battle.enums.BattleCreatorType;
+import com.swyp.picke.domain.battle.enums.BattleStatus;
+import com.swyp.picke.domain.battle.enums.BattleType;
+
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.util.List;
+
+/**
+ * 관리자 - 배틀 상세 상세 조회 응답
+ * 역할: 관리자가 배틀의 모든 설정 값(상태, 생성자 타입, 수정일 등)을 확인하고 수정할 때 사용합니다.
+ */
+
+public record AdminBattleDetailResponse(
+        Long battleId,
+        String title,
+        String titlePrefix,
+        String titleSuffix,
+        String summary,
+        String description,
+        String thumbnailUrl,
+        BattleType type,
+        String itemA,
+        String itemADesc,
+        String itemB,
+        String itemBDesc,
+        LocalDate targetDate,
+        BattleStatus status,
+        BattleCreatorType creatorType,
+        List<BattleTagResponse> tags,
+        List<BattleOptionResponse> options,
+        LocalDateTime createdAt,
+        LocalDateTime updatedAt
+) {}
\ No newline at end of file
diff --git a/src/main/java/com/swyp/picke/domain/battle/enums/BattleType.java b/src/main/java/com/swyp/picke/domain/battle/enums/BattleType.java
new file mode 100644
index 00000000..648e1eff
--- /dev/null
+++ b/src/main/java/com/swyp/picke/domain/battle/enums/BattleType.java
@@ -0,0 +1,5 @@
+package com.swyp.picke.domain.battle.enums;
+
+public enum BattleType {
+    BATTLE, QUIZ, VOTE
+}
diff --git a/src/main/java/com/swyp/picke/domain/tag/dto/request/TagRequest.java b/src/main/java/com/swyp/picke/domain/tag/dto/request/TagRequest.java
new file mode 100644
index 00000000..736bfda6
--- /dev/null
+++ b/src/main/java/com/swyp/picke/domain/tag/dto/request/TagRequest.java
@@ -0,0 +1,13 @@
+package com.swyp.picke.domain.tag.dto.request;
+
+import com.swyp.picke.domain.tag.enums.TagType;
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
+
+public record TagRequest(
+        @NotBlank(message = "태그 이름을 입력해주세요.")
+        String name,
+
+        @NotNull(message = "태그 타입을 선택해주세요.")
+        TagType type
+) {}
\ No newline at end of file
diff --git a/src/main/java/com/swyp/picke/domain/tag/dto/response/TagDeleteResponse.java b/src/main/java/com/swyp/picke/domain/tag/dto/response/TagDeleteResponse.java
new file mode 100644
index 00000000..71b350e8
--- /dev/null
+++ b/src/main/java/com/swyp/picke/domain/tag/dto/response/TagDeleteResponse.java
@@ -0,0 +1,8 @@
+package com.swyp.picke.domain.tag.dto.response;
+
+import java.time.LocalDateTime;
+
+public record TagDeleteResponse(
+        boolean success,
+        LocalDateTime deletedAt
+) {}
\ No newline at end of file
diff --git a/src/main/java/com/swyp/picke/domain/tag/dto/response/TagResponse.java b/src/main/java/com/swyp/picke/domain/tag/dto/response/TagResponse.java
new file mode 100644
index 00000000..70554dde
--- /dev/null
+++ b/src/main/java/com/swyp/picke/domain/tag/dto/response/TagResponse.java
@@ -0,0 +1,12 @@
+package com.swyp.picke.domain.tag.dto.response;
+
+import com.swyp.picke.domain.tag.enums.TagType;
+import java.time.LocalDateTime;
+
+public record TagResponse(
+        Long tagId,
+        String name,
+        TagType type,
+        LocalDateTime createdAt,
+        LocalDateTime updatedAt
+) {}
\ No newline at end of file
diff --git a/src/main/java/com/swyp/picke/domain/test/controller/TestController.java b/src/main/java/com/swyp/picke/domain/test/controller/TestController.java
new file mode 100644
index 00000000..c937631e
--- /dev/null
+++ b/src/main/java/com/swyp/picke/domain/test/controller/TestController.java
@@ -0,0 +1,34 @@
+package com.swyp.picke.domain.test.controller;
+
+import com.swyp.picke.domain.oauth.jwt.JwtProvider;
+import com.swyp.picke.global.common.response.ApiResponse;
+import lombok.RequiredArgsConstructor;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+import java.util.Map;
+
+@RestController
+@RequestMapping("/api/test")
+@RequiredArgsConstructor
+public class TestController {
+
+    private final JwtProvider jwtProvider;
+
+    @GetMapping("/response")
+    public ApiResponse<List<String>> testResponse() {
+        List<String> teamMembers = List.of("주천수", "팀원2", "팀원3", "팀원4");
+        return ApiResponse.onSuccess(teamMembers);
+    }
+
+    @GetMapping("/token")
+    public ApiResponse<Map<String, String>> getTestToken(
+            @RequestParam(defaultValue = "1") Long userId
+    ) {
+        String token = jwtProvider.createAccessToken(userId, "USER");
+        return ApiResponse.onSuccess(Map.of("accessToken", token));
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/com/swyp/picke/domain/vote/entity/Vote.java b/src/main/java/com/swyp/picke/domain/vote/entity/Vote.java
new file mode 100644
index 00000000..47054b65
--- /dev/null
+++ b/src/main/java/com/swyp/picke/domain/vote/entity/Vote.java
@@ -0,0 +1,87 @@
+package com.swyp.picke.domain.vote.entity;
+
+import com.swyp.picke.domain.battle.entity.Battle;
+import com.swyp.picke.domain.battle.entity.BattleOption;
+import com.swyp.picke.domain.user.entity.User;
+import com.swyp.picke.global.common.BaseEntity;
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
+import lombok.AccessLevel;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Getter
+@Entity
+@Table(name = "votes")
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class Vote extends BaseEntity {
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "user_id", nullable = false)
+    private User user;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "battle_id", nullable = false)
+    private Battle battle;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "pre_vote_option_id")
+    private BattleOption preVoteOption;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "post_vote_option_id")
+    private BattleOption postVoteOption;
+
+    @Column(name = "is_tts_listened", nullable = false)
+    private Boolean isTtsListened = false;
+
+    @Builder
+    private Vote(User user, Battle battle, BattleOption preVoteOption,
+                 BattleOption postVoteOption, Boolean isTtsListened) {
+        this.user = user;
+        this.battle = battle;
+        this.preVoteOption = preVoteOption;
+        this.postVoteOption = postVoteOption;
+        this.isTtsListened = isTtsListened != null ? isTtsListened : false;
+    }
+
+    /**
+     * 최초 투표(사전 투표) 시 사용하는 정적 팩토리 메서드
+     */
+    public static Vote createPreVote(User user, Battle battle, BattleOption option) {
+        return Vote.builder()
+                .user(user)
+                .battle(battle)
+                .preVoteOption(option)
+                .isTtsListened(false)
+                // status 설정 삭제됨
+                .build();
+    }
+
+    /**
+     * 사전 투표 옵션 수정 메서드
+     */
+    public void updatePreVote(BattleOption preVoteOption) {
+        this.preVoteOption = preVoteOption;
+    }
+
+    /**
+     * 사후 투표 업데이트
+     */
+    public void doPostVote(BattleOption postOption) {
+        this.postVoteOption = postOption;
+        // status 업데이트 삭제됨
+    }
+
+    /**
+     * TTS 청취 상태 업데이트
+     */
+    public void completeTts() {
+        this.isTtsListened = true;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/com/swyp/picke/domain/vote/repository/VoteRepository.java b/src/main/java/com/swyp/picke/domain/vote/repository/VoteRepository.java
new file mode 100644
index 00000000..4159beb1
--- /dev/null
+++ b/src/main/java/com/swyp/picke/domain/vote/repository/VoteRepository.java
@@ -0,0 +1,69 @@
+package com.swyp.picke.domain.vote.repository;
+
+import com.swyp.picke.domain.battle.entity.Battle;
+import com.swyp.picke.domain.battle.entity.BattleOption;
+import com.swyp.picke.domain.battle.enums.BattleOptionLabel;
+import com.swyp.picke.domain.user.entity.User;
+import com.swyp.picke.domain.vote.entity.Vote;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
+
+import java.util.List;
+import java.util.Optional;
+
+public interface VoteRepository extends JpaRepository<Vote, Long> {
+
+    List<Vote> findAllByBattle(Battle battle);
+
+    Optional<Vote> findByBattleIdAndUserId(Long battleId, Long userId);
+
+    @Query("SELECT v FROM Vote v LEFT JOIN FETCH v.postVoteOption WHERE v.battle.id = :battleId AND v.user.id = :userId")
+    Optional<Vote> findByBattleIdAndUserIdWithOption(@Param("battleId") Long battleId, @Param("userId") Long userId);
+
+    Optional<Vote> findByBattleAndUser(Battle battle, User user);
+
+    long countByBattle(Battle battle);
+
+    long countByBattleAndPreVoteOption(Battle battle, BattleOption preVoteOption);
+
+    Optional<Vote> findTopByBattleOrderByUpdatedAtDesc(Battle battle);
+
+    @Query("SELECT v FROM Vote v JOIN FETCH v.battle JOIN FETCH v.preVoteOption " +
+           "WHERE v.user.id = :userId ORDER BY v.createdAt DESC")
+    List<Vote> findByUserIdOrderByCreatedAtDesc(@Param("userId") Long userId, Pageable pageable);
+
+    @Query("SELECT v FROM Vote v JOIN FETCH v.battle JOIN FETCH v.preVoteOption " +
+           "WHERE v.user.id = :userId AND v.preVoteOption.label = :label ORDER BY v.createdAt DESC")
+    List<Vote> findByUserIdAndPreVoteOptionLabelOrderByCreatedAtDesc(
+            @Param("userId") Long userId, @Param("label") BattleOptionLabel label, Pageable pageable);
+
+    long countByUserId(Long userId);
+
+    @Query("SELECT COUNT(v) FROM Vote v WHERE v.user.id = :userId AND v.preVoteOption.label = :label")
+    long countByUserIdAndPreVoteOptionLabel(@Param("userId") Long userId, @Param("label") BattleOptionLabel label);
+
+    @Query("SELECT COUNT(v) FROM Vote v WHERE v.user.id = :userId " +
+            "AND v.postVoteOption IS NOT NULL " +
+            "AND v.preVoteOption <> v.postVoteOption")
+    long countOpinionChangesByUserId(@Param("userId") Long userId);
+
+    List<Vote> findByUserId(Long userId);
+
+    // MypageService: 철학자 유형 산출용 - 최초 N개 투표 조회 (생성순)
+    @Query("SELECT v FROM Vote v JOIN FETCH v.battle WHERE v.user.id = :userId ORDER BY v.createdAt ASC")
+    List<Vote> findByUserIdOrderByCreatedAtAsc(@Param("userId") Long userId, Pageable pageable);
+
+    // 추천용: 유저가 참여한 배틀 ID 조회
+    @Query("SELECT v.battle.id FROM Vote v WHERE v.user.id = :userId")
+    List<Long> findParticipatedBattleIdsByUserId(@Param("userId") Long userId);
+
+    // 추천용: 특정 배틀에 참여한 유저 ID 조회
+    @Query("SELECT DISTINCT v.user.id FROM Vote v WHERE v.battle.id IN :battleIds")
+    List<Long> findUserIdsByBattleIds(@Param("battleIds") List<Long> battleIds);
+
+    // 추천용: 특정 유저들이 참여한 배틀 ID 조회
+    @Query("SELECT v.battle.id FROM Vote v WHERE v.user.id IN :userIds")
+    List<Long> findParticipatedBattleIdsByUserIds(@Param("userIds") List<Long> userIds);
+}
diff --git a/src/main/java/com/swyp/picke/domain/vote/service/VoteService.java b/src/main/java/com/swyp/picke/domain/vote/service/VoteService.java
new file mode 100644
index 00000000..77d68fe6
--- /dev/null
+++ b/src/main/java/com/swyp/picke/domain/vote/service/VoteService.java
@@ -0,0 +1,18 @@
+package com.swyp.picke.domain.vote.service;
+
+import com.swyp.picke.domain.battle.entity.BattleOption;
+import com.swyp.picke.domain.vote.dto.request.VoteRequest;
+import com.swyp.picke.domain.vote.dto.response.MyVoteResponse;
+import com.swyp.picke.domain.vote.dto.response.VoteResultResponse;
+import com.swyp.picke.domain.vote.dto.response.VoteStatsResponse;
+
+public interface VoteService {
+    BattleOption findPreVoteOption(Long battleId, Long userId);
+    Long findPostVoteOptionId(Long battleId, Long userId);
+    VoteStatsResponse getVoteStats(Long battleId);
+    MyVoteResponse getMyVote(Long battleId, Long userId);
+    VoteResultResponse preVote(Long battleId, Long userId, VoteRequest request);
+    VoteResultResponse postVote(Long battleId, Long userId, VoteRequest request);
+    void deleteVotesByBattleId(Long battleId);
+    void completeTts(Long battleId, Long userId);
+}
\ No newline at end of file
diff --git a/src/main/java/com/swyp/picke/domain/vote/service/VoteServiceImpl.java b/src/main/java/com/swyp/picke/domain/vote/service/VoteServiceImpl.java
new file mode 100644
index 00000000..32a2d956
--- /dev/null
+++ b/src/main/java/com/swyp/picke/domain/vote/service/VoteServiceImpl.java
@@ -0,0 +1,200 @@
+package com.swyp.picke.domain.vote.service;
+
+import com.swyp.picke.domain.battle.entity.Battle;
+import com.swyp.picke.domain.battle.entity.BattleOption;
+import com.swyp.picke.domain.battle.repository.BattleOptionRepository;
+import com.swyp.picke.domain.battle.service.BattleService;
+import com.swyp.picke.domain.user.dto.response.UserBattleStatusResponse;
+import com.swyp.picke.domain.user.entity.User;
+import com.swyp.picke.domain.user.enums.UserBattleStep;
+import com.swyp.picke.domain.user.repository.UserRepository;
+import com.swyp.picke.domain.user.service.UserBattleService;
+import com.swyp.picke.domain.vote.converter.VoteConverter;
+import com.swyp.picke.domain.vote.dto.request.VoteRequest;
+import com.swyp.picke.domain.vote.dto.response.MyVoteResponse;
+import com.swyp.picke.domain.vote.dto.response.VoteResultResponse;
+import com.swyp.picke.domain.vote.dto.response.VoteStatsResponse;
+import com.swyp.picke.domain.vote.entity.Vote;
+import com.swyp.picke.domain.vote.repository.VoteRepository;
+import com.swyp.picke.global.common.exception.CustomException;
+import com.swyp.picke.global.common.exception.ErrorCode;
+import java.util.Optional;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.time.LocalDateTime;
+import java.util.List;
+
+@Service
+@RequiredArgsConstructor
+@Transactional(readOnly = true)
+public class VoteServiceImpl implements VoteService {
+
+    private final VoteRepository voteRepository;
+    private final BattleService battleService;
+    private final BattleOptionRepository battleOptionRepository;
+    private final UserRepository userRepository;
+    private final UserBattleService userBattleService;
+
+    @Override
+    public BattleOption findPreVoteOption(Long battleId, Long userId) {
+        Battle battle = battleService.findById(battleId);
+        User user = userRepository.findById(userId)
+                .orElseThrow(() -> new CustomException(ErrorCode.USER_NOT_FOUND));
+
+        Vote vote = voteRepository.findByBattleAndUser(battle, user)
+                .orElseThrow(() -> new CustomException(ErrorCode.VOTE_NOT_FOUND));
+
+        if (vote.getPreVoteOption() == null) {
+            throw new CustomException(ErrorCode.PRE_VOTE_REQUIRED);
+        }
+        return vote.getPreVoteOption();
+    }
+
+    @Override
+    public Long findPostVoteOptionId(Long battleId, Long userId) {
+        return voteRepository.findByBattleIdAndUserId(battleId, userId)
+                .map(vote -> vote.getPostVoteOption() != null ? vote.getPostVoteOption().getId() : null)
+                .orElse(null);
+    }
+
+    @Override
+    public VoteStatsResponse getVoteStats(Long battleId) {
+        Battle battle = battleService.findById(battleId);
+        List<BattleOption> options = battleOptionRepository.findByBattle(battle);
+        long totalCount = voteRepository.countByBattle(battle);
+
+        List<VoteStatsResponse.OptionStat> stats = options.stream()
+                .map(option -> {
+                    long count = voteRepository.countByBattleAndPreVoteOption(battle, option);
+                    double ratio = totalCount > 0
+                            ? Math.round((double) count / totalCount * 1000.0) / 10.0
+                            : 0.0;
+                    return new VoteStatsResponse.OptionStat(
+                            option.getId(), option.getLabel().name(), option.getTitle(), count, ratio);
+                })
+                .toList();
+
+        LocalDateTime updatedAt = voteRepository.findTopByBattleOrderByUpdatedAtDesc(battle)
+                .map(Vote::getUpdatedAt)
+                .orElse(null);
+
+        return VoteConverter.toVoteStatsResponse(stats, totalCount, updatedAt);
+    }
+
+    @Override
+    public MyVoteResponse getMyVote(Long battleId, Long userId) {
+        Battle battle = battleService.findById(battleId);
+        User user = userRepository.findById(userId)
+                .orElseThrow(() -> new CustomException(ErrorCode.USER_NOT_FOUND));
+
+        Vote vote = voteRepository.findByBattleAndUser(battle, user)
+                .orElseThrow(() -> new CustomException(ErrorCode.VOTE_NOT_FOUND));
+
+        UserBattleStatusResponse status = userBattleService.getUserBattleStatus(user, battle);
+        return VoteConverter.toMyVoteResponse(vote, status.step());
+    }
+
+    @Override
+    @Transactional
+    public VoteResultResponse preVote(Long battleId, Long userId, VoteRequest request) {
+        // 1. 기본 정보 조회 (배틀, 유저, 선택한 옵션)
+        Battle battle = battleService.findById(battleId);
+        User user = userRepository.findById(userId)
+                .orElseThrow(() -> new CustomException(ErrorCode.USER_NOT_FOUND));
+        BattleOption option = battleOptionRepository.findById(request.optionId())
+                .orElseThrow(() -> new CustomException(ErrorCode.BATTLE_OPTION_NOT_FOUND));
+
+        // 2. 기존 투표 여부 확인 (에러 대신 Optional로 받음)
+        Optional<Vote> existingVote = voteRepository.findByBattleAndUser(battle, user);
+        Vote vote;
+
+        if (existingVote.isPresent()) {
+            vote = existingVote.get();
+            vote.updatePreVote(option);
+        } else {
+            vote = Vote.createPreVote(user, battle, option);
+            voteRepository.save(vote);
+            battle.addParticipant();
+        }
+
+        // 3. 현재 유저의 진행 단계 확인
+        UserBattleStatusResponse status = userBattleService.getUserBattleStatus(user, battle);
+
+        // 4. 단계 업데이트 (처음 참여하는 경우에만 단계를 PRE_VOTE로 변경)
+        // 이미 POST_VOTE나 COMPLETED라면 단계를 강제로 낮추지 않음
+        if (status.step() == UserBattleStep.NONE) {
+            userBattleService.upsertStep(user, battle, UserBattleStep.PRE_VOTE);
+        }
+
+        // 5. 현재 유지 중인 단계를 반환 (수정 후에도 COMPLETED 유지 가능)
+        UserBattleStep currentStep = (status.step() == UserBattleStep.NONE) ? UserBattleStep.PRE_VOTE : status.step();
+        return new VoteResultResponse(vote.getId(), currentStep);
+    }
+
+    @Override
+    @Transactional
+    public VoteResultResponse postVote(Long battleId, Long userId, VoteRequest request) {
+        Battle battle = battleService.findById(battleId);
+        User user = userRepository.findById(userId)
+                .orElseThrow(() -> new CustomException(ErrorCode.USER_NOT_FOUND));
+        BattleOption option = battleOptionRepository.findById(request.optionId())
+                .orElseThrow(() -> new CustomException(ErrorCode.BATTLE_OPTION_NOT_FOUND));
+
+        Vote vote = voteRepository.findByBattleAndUser(battle, user)
+                .orElseThrow(() -> new CustomException(ErrorCode.VOTE_NOT_FOUND));
+
+        // [검증] 사전 투표를 완료한 상태(혹은 오디오 청취 완료 상태)인지 확인
+        UserBattleStatusResponse status = userBattleService.getUserBattleStatus(user, battle);
+        if (status.step() == UserBattleStep.NONE) {
+            throw new CustomException(ErrorCode.PRE_VOTE_REQUIRED);
+        }
+
+        // 1. 사후 투표 업데이트
+        vote.doPostVote(option);
+
+        // 2. 최종 완료 단계(COMPLETED)로 업데이트
+        userBattleService.upsertStep(user, battle, UserBattleStep.COMPLETED);
+
+        return new VoteResultResponse(vote.getId(), UserBattleStep.COMPLETED);
+    }
+
+    @Override
+    @Transactional
+    public void deleteVotesByBattleId(Long battleId) {
+        // 1. 배틀 조회
+        Battle battle = battleService.findById(battleId);
+
+        // 2. 해당 배틀의 모든 투표 조회
+        List<Vote> votes = voteRepository.findAllByBattle(battle);
+
+        for (Vote vote : votes) {
+            // 3. 유저의 진행 단계 초기화 (이건 유저별로 다 해줘야 함)
+            userBattleService.upsertStep(vote.getUser(), battle, UserBattleStep.NONE);
+
+            // 4. 옵션별 카운트 감소 (필요 시)
+            if (vote.getPreVoteOption() != null) { /* 감소 로직 */ }
+            if (vote.getPostVoteOption() != null) { /* 감소 로직 */ }
+        }
+
+        // 5. 투표 데이터 일괄 삭제
+        voteRepository.deleteAllInBatch(votes);
+    }
+
+    @Override
+    @Transactional
+    public void completeTts(Long battleId, Long userId) {
+        Battle battle = battleService.findById(battleId);
+        User user = userRepository.findById(userId)
+                .orElseThrow(() -> new CustomException(ErrorCode.USER_NOT_FOUND));
+
+        // 1. 엔티티 상태 변경 (isTtsListened = true)
+        Vote vote = voteRepository.findByBattleAndUser(battle, user)
+                .orElseThrow(() -> new CustomException(ErrorCode.VOTE_NOT_FOUND));
+        vote.completeTts();
+
+        // 2. 단계를 POST_VOTE(사후 투표 가능 단계)로 업데이트
+        userBattleService.upsertStep(user, battle, UserBattleStep.POST_VOTE);
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/com/swyp/picke/global/infra/tts/service/GoogleCloudTtsServiceImpl.java b/src/main/java/com/swyp/picke/global/infra/tts/service/GoogleCloudTtsServiceImpl.java
new file mode 100644
index 00000000..f61d22ec
--- /dev/null
+++ b/src/main/java/com/swyp/picke/global/infra/tts/service/GoogleCloudTtsServiceImpl.java
@@ -0,0 +1,71 @@
+package com.swyp.picke.global.infra.tts.service;
+
+import com.google.auth.oauth2.GoogleCredentials;
+import com.google.cloud.texttospeech.v1.*;
+import com.google.protobuf.ByteString;
+import com.swyp.picke.domain.scenario.enums.SpeakerType;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.util.UUID;
+
+@Slf4j
+// @Primary - 사용할 때 주석 삭제
+@Service
+public class GoogleCloudTtsServiceImpl implements TtsService {
+
+    @Value("${spring.cloud.gcp.credentials.location}")
+    private String credentialsLocation;
+
+    @Override
+    public File generateTtsWithSsml(String rawText, SpeakerType speakerType) throws Exception {
+        // SSML 태그가 없으면 자동으로 씌워줍니다.
+        String ssmlInput = rawText.trim().startsWith("<speak>") ? rawText : "<speak>" + rawText + "</speak>";
+
+        try (FileInputStream credentialsStream = new FileInputStream(credentialsLocation)) {
+            GoogleCredentials credentials = GoogleCredentials.fromStream(credentialsStream);
+            TextToSpeechSettings settings = TextToSpeechSettings.newBuilder()
+                    .setCredentialsProvider(() -> credentials)
+                    .build();
+
+            try (TextToSpeechClient textToSpeechClient = TextToSpeechClient.create(settings)) {
+                SynthesisInput input = SynthesisInput.newBuilder().setSsml(ssmlInput).build();
+                VoiceSelectionParams voice = buildVoiceSelection(speakerType);
+                AudioConfig audioConfig = AudioConfig.newBuilder().setAudioEncoding(AudioEncoding.MP3).build();
+
+                // 실제 구글 API가 호출될 때만 찍히는 로그
+                String logText = rawText.length() > 15 ? rawText.substring(0, 15) + "..." : rawText;
+                log.info("[TTS 호출] 💳 구글 API 실제 요청 발생! (화자: {}, 대사: '{}')", speakerType.name(), logText);
+
+                SynthesizeSpeechResponse response = textToSpeechClient.synthesizeSpeech(input, voice, audioConfig);
+                ByteString audioContents = response.getAudioContent();
+
+                File tempFile = File.createTempFile("tts_" + UUID.randomUUID(), ".mp3");
+                try (FileOutputStream out = new FileOutputStream(tempFile)) {
+                    out.write(audioContents.toByteArray());
+                }
+                return tempFile;
+            }
+        } catch (Exception e) {
+            log.error("[TTS 호출 실패] GCP 키 파일 확인 필요: {}", credentialsLocation, e);
+            throw e;
+        }
+    }
+
+    private VoiceSelectionParams buildVoiceSelection(SpeakerType type) {
+        String voiceName = switch (type) {
+            case A -> "ko-KR-Wavenet-C";
+            case B -> "ko-KR-Wavenet-D";
+            case USER -> "ko-KR-Wavenet-B";
+            case NARRATOR -> "ko-KR-Wavenet-A";
+        };
+        return VoiceSelectionParams.newBuilder()
+                .setLanguageCode("ko-KR")
+                .setName(voiceName)
+                .build();
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/com/swyp/picke/global/infra/tts/service/OpenAiTtsServiceImpl.java b/src/main/java/com/swyp/picke/global/infra/tts/service/OpenAiTtsServiceImpl.java
new file mode 100644
index 00000000..c5168e42
--- /dev/null
+++ b/src/main/java/com/swyp/picke/global/infra/tts/service/OpenAiTtsServiceImpl.java
@@ -0,0 +1,97 @@
+package com.swyp.picke.global.infra.tts.service;
+
+import com.swyp.picke.domain.scenario.enums.SpeakerType;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.*;
+import org.springframework.stereotype.Service;
+import org.springframework.web.client.RestTemplate;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.UUID;
+
+@Slf4j
+// @Primary - 사용할 때 주석 삭제
+@Service
+public class OpenAiTtsServiceImpl implements TtsService {
+
+    @Value("${openai.api-key}")
+    private String openAiApiKey;
+
+    @Value("${openai.tts.model:gpt-4o-mini-tts}")
+    private String ttsModel;
+
+    @Value("${openai.tts.url:https://api.openai.com/v1/audio/speech}")
+    private String ttsUrl;
+
+    @Override
+    public File generateTtsWithSsml(String rawText, SpeakerType speakerType) throws Exception {
+        // 1. 억지스러운 전처리 제거 (자연스러운 문장 부호 유지)
+        String actingText = cleanTextForNaturalFlow(rawText);
+
+        String voice = getOpenAiVoice(speakerType);
+        double speed = getVoiceSpeed(speakerType);
+
+        log.info("[TTS 호출] OpenAI 호출 (화자: {}, 속도: {}, 대사: '{}')", voice, speed, actingText);
+
+        RestTemplate restTemplate = new RestTemplate();
+        HttpHeaders headers = new HttpHeaders();
+        headers.setContentType(MediaType.APPLICATION_JSON);
+        headers.setBearerAuth(openAiApiKey);
+
+        Map<String, Object> requestBody = new HashMap<>();
+        requestBody.put("model", ttsModel);
+        requestBody.put("input", actingText);
+        requestBody.put("voice", voice);
+        requestBody.put("response_format", "mp3");
+        requestBody.put("speed", speed);
+
+        HttpEntity<Map<String, Object>> entity = new HttpEntity<>(requestBody, headers);
+
+        try {
+            ResponseEntity<byte[]> response = restTemplate.exchange(ttsUrl, HttpMethod.POST, entity, byte[].class);
+            File tempFile = File.createTempFile("tts_pro_" + UUID.randomUUID(), ".mp3");
+            try (FileOutputStream out = new FileOutputStream(tempFile)) {
+                out.write(response.getBody());
+            }
+            return tempFile;
+        } catch (Exception e) {
+            log.error("[TTS 호출 실패]", e);
+            throw e;
+        }
+    }
+
+    /**
+     * 인위적인 쉼표 조작을 없애고, AI가 마침표(.)와 느낌표(!)를 보고
+     * 스스로 억양을 잡게 합니다.
+     */
+    private String cleanTextForNaturalFlow(String rawText) {
+        // SSML만 제거하고, 원래 문장의 쉼표와 마침표를 그대로 살립니다.
+        // OpenAI는 마침표에서 톤을 낮추고, 느낌표에서 톤을 높이는 연기를 알아서 합니다.
+        return rawText.replaceAll("<[^>]*>", "").replaceAll("\\s+", " ").trim();
+    }
+
+    private String getOpenAiVoice(SpeakerType type) {
+        return switch (type) {
+            case A -> "shimmer"; // 날카롭고 빠른 반응에 최적
+            case B -> "fable";   // 단호한 반박
+            case USER -> "alloy";
+            case NARRATOR -> "onyx";
+        };
+    }
+
+    /**
+     * 박진감을 위해 속도를 1.15~1.2 수준으로 올립니다.
+     * 1.2가 넘어가면 말이 뭉개질 수 있으니 여기가 마지노선입니다.
+     */
+    private double getVoiceSpeed(SpeakerType type) {
+        return switch (type) {
+            case NARRATOR -> 1.05; // 해설도 지루하지 않게
+            case A, B -> 1.18;     // 🔥 대결 톤! 1.18~1.2 정도면 아주 긴박합니다.
+            case USER -> 1.12;
+        };
+    }
+}
\ No newline at end of file
diff --git a/src/main/resources/templates/share/result.html b/src/main/resources/templates/share/result.html
new file mode 100644
index 00000000..b75c451f
--- /dev/null
+++ b/src/main/resources/templates/share/result.html
@@ -0,0 +1,92 @@
+<!DOCTYPE html>
+<html lang="ko" xmlns:th="http://www.thymeleaf.org">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Pické - 철학자 유형 결과</title>
+    <link rel="icon" href="data:;base64,iVBORw0KGgo=">
+    <script src="https://cdn.tailwindcss.com"></script>
+    <link href="https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;500;700;900&display=swap" rel="stylesheet">
+    <style>body { font-family: 'Noto Sans KR', sans-serif; }</style>
+</head>
+<body class="bg-[#FDF6F0] flex items-center justify-center min-h-screen">
+
+<div id="app" class="w-full max-w-sm mx-auto flex flex-col items-center justify-center min-h-screen px-6 text-center">
+
+    <!-- 모바일: 리다이렉트 중 표시 -->
+    <div id="mobile-view" class="hidden flex-col items-center gap-6">
+        <div class="w-10 h-10 border-4 border-[#7A402D]/30 border-t-[#7A402D] rounded-full animate-spin"></div>
+        <p class="text-[#7A402D] font-bold text-lg">앱으로 이동 중...</p>
+        <p class="text-gray-500 text-sm">잠시만 기다려주세요</p>
+        <a id="store-link" href="#" class="mt-4 px-6 py-3 bg-[#7A402D] text-white rounded-full font-bold text-sm">
+            앱 설치하기
+        </a>
+    </div>
+
+    <!-- PC: 랜딩 페이지 -->
+    <div id="pc-view" class="hidden flex-col items-center gap-6">
+        <div class="text-6xl mb-2">🦉</div>
+        <h1 class="text-2xl font-black text-[#7A402D]">Pické</h1>
+        <p class="text-gray-600 text-base leading-relaxed">
+            나만의 철학자 유형을 발견하고<br>다양한 관점을 나눠보세요.
+        </p>
+        <div class="bg-white rounded-2xl p-6 shadow-sm border border-gray-100 w-full">
+            <p class="text-sm text-gray-500 mb-3">모바일 앱에서 확인하세요</p>
+            <div class="flex gap-3 justify-center">
+                <a href="https://play.google.com/store/apps/details?id=com.swyp.picke"
+                   target="_blank"
+                   class="px-4 py-2 bg-[#7A402D] text-white rounded-lg text-sm font-bold">
+                    Google Play
+                </a>
+                <a href="https://apps.apple.com/app/picke/id000000000"
+                   target="_blank"
+                   class="px-4 py-2 bg-[#7A402D] text-white rounded-lg text-sm font-bold">
+                    App Store
+                </a>
+            </div>
+        </div>
+    </div>
+
+</div>
+
+<script th:inline="javascript">
+    const userId = [[${userId}]];
+
+    // 딥링크 스킴 (앱 팀과 협의 후 수정)
+    const DEEP_LINK_SCHEME = 'picke://result/' + userId;
+    const ANDROID_INTENT    = 'intent://result/' + userId + '#Intent;scheme=picke;package=com.swyp.picke;end';
+    const PLAY_STORE_URL    = 'https://play.google.com/store/apps/details?id=com.swyp.picke';
+    const APP_STORE_URL     = 'https://apps.apple.com/app/picke/id000000000'; // TODO: App Store ID 교체
+
+    const ua = navigator.userAgent.toLowerCase();
+    const isAndroid = /android/.test(ua);
+    const isIOS = /iphone|ipad|ipod/.test(ua);
+    const isMobile = isAndroid || isIOS;
+
+    if (isMobile) {
+        document.getElementById('mobile-view').classList.remove('hidden');
+        document.getElementById('mobile-view').classList.add('flex');
+
+        const storeLink = isAndroid ? PLAY_STORE_URL : APP_STORE_URL;
+        document.getElementById('store-link').href = storeLink;
+
+        // 딥링크 시도 후 일정 시간 내 앱 전환 안 되면 스토어로 이동
+        const fallbackTimer = setTimeout(() => {
+            window.location.href = storeLink;
+        }, 2500);
+
+        window.addEventListener('blur', () => clearTimeout(fallbackTimer));
+
+        if (isAndroid) {
+            window.location.href = ANDROID_INTENT;
+        } else {
+            window.location.href = DEEP_LINK_SCHEME;
+        }
+    } else {
+        document.getElementById('pc-view').classList.remove('hidden');
+        document.getElementById('pc-view').classList.add('flex');
+    }
+</script>
+
+</body>
+</html>