diff --git a/internal/bossraid/service.go b/internal/bossraid/service.go
index 5dbe579..bc696d3 100644
--- a/internal/bossraid/service.go
+++ b/internal/bossraid/service.go
@@ -221,28 +221,27 @@ func (s *Service) CompleteRaid(sessionName string, rewards []PlayerReward) (*Bos
 	hasRewardFailure := false
 	if s.rewardGrant != nil {
 		for _, r := range rewards {
-			lastTxID, grantErr := s.grantWithRetry(r.Username, r.TokenAmount, r.Assets)
+			// 1회만 시도 — 실패 시 즉시 RewardFailure에 저장하여 백그라운드 워커가 재시도
+			txID, grantErr := s.rewardGrant(r.Username, r.TokenAmount, r.Assets)
 			result := RewardResult{Username: r.Username, Success: grantErr == nil}
 			if grantErr != nil {
 				result.Error = grantErr.Error()
-				log.Printf("보상 지급 실패 (재시도 소진): %s: %v", r.Username, grantErr)
+				log.Printf("보상 지급 실패: %s: %v (백그라운드 재시도 예정)", r.Username, grantErr)
 				hasRewardFailure = true
-				// 실패한 보상을 DB에 기록하여 백그라운드 재시도 가능하게 함
-				s.saveRewardFailure(sessionName, r, grantErr, lastTxID)
+				s.saveRewardFailure(sessionName, r, grantErr, txID)
 			}
 			resultRewards = append(resultRewards, result)
 		}
 	}
 
-	// Grant experience to players (with retry)
+	// Grant experience to players (1회 시도, 실패 시 백그라운드 재시도)
 	if s.expGrant != nil {
 		for _, r := range rewards {
 			if r.Experience > 0 {
-				expErr := s.grantExpWithRetry(r.Username, r.Experience)
+				expErr := s.expGrant(r.Username, r.Experience)
 				if expErr != nil {
-					log.Printf("경험치 지급 실패 (재시도 소진): %s: %v", r.Username, expErr)
+					log.Printf("경험치 지급 실패: %s: %v (백그라운드 재시도 예정)", r.Username, expErr)
 					hasRewardFailure = true
-					// 경험치 실패도 RewardFailure에 기록 (토큰/에셋 없이 경험치만)
 					s.saveRewardFailure(sessionName, PlayerReward{
 						Username:   r.Username,
 						Experience: r.Experience,
@@ -541,49 +540,7 @@ func (s *Service) GetServerStatus(serverName string) (*DedicatedServer, []RoomSl
 	return server, slots, nil
 }
 
-// --- Reward retry helpers ---
-
-const immediateRetries = 3
-
-// grantWithRetry attempts the reward grant up to 3 times with backoff (1s, 2s).
-// Returns the last attempted transaction ID (may be empty) and the error.
-func (s *Service) grantWithRetry(username string, tokenAmount uint64, assets []core.MintAssetPayload) (string, error) {
-	delays := []time.Duration{1 * time.Second, 2 * time.Second}
-	var lastErr error
-	var lastTxID string
-	for attempt := 0; attempt < immediateRetries; attempt++ {
-		txID, err := s.rewardGrant(username, tokenAmount, assets)
-		if txID != "" {
-			lastTxID = txID
-		}
-		if err == nil {
-			return txID, nil
-		}
-		lastErr = err
-		if attempt < len(delays) {
-			log.Printf("보상 지급 재시도 (%d/%d): %s: %v", attempt+1, immediateRetries, username, lastErr)
-			time.Sleep(delays[attempt])
-		}
-	}
-	return lastTxID, lastErr
-}
-
-// grantExpWithRetry attempts the experience grant up to 3 times with backoff (1s, 2s).
-func (s *Service) grantExpWithRetry(username string, exp int) error {
-	delays := []time.Duration{1 * time.Second, 2 * time.Second}
-	var lastErr error
-	for attempt := 0; attempt < immediateRetries; attempt++ {
-		lastErr = s.expGrant(username, exp)
-		if lastErr == nil {
-			return nil
-		}
-		if attempt < len(delays) {
-			log.Printf("경험치 지급 재시도 (%d/%d): %s: %v", attempt+1, immediateRetries, username, lastErr)
-			time.Sleep(delays[attempt])
-		}
-	}
-	return lastErr
-}
+// --- Reward helpers ---
 
 // saveRewardFailure records a failed reward in the DB for background retry.
 func (s *Service) saveRewardFailure(sessionName string, r PlayerReward, grantErr error, lastTxID string) {