diff --git a/internal/api/friend.go b/internal/api/friend.go
index 14bce2388..fc09c77e9 100644
--- a/internal/api/friend.go
+++ b/internal/api/friend.go
@@ -41,6 +41,10 @@ func (o *FriendApi) DeleteFriend(c *gin.Context) {
 	a2r.Call(c, relation.FriendClient.DeleteFriend, o.Client)
 }
 
+func (o *FriendApi) DeleteFriendOneway(c *gin.Context) {
+	a2r.Call(c, relation.FriendClient.DeleteFriendOneway, o.Client)
+}
+
 func (o *FriendApi) GetFriendApplyList(c *gin.Context) {
 	a2r.Call(c, relation.FriendClient.GetPaginationFriendsApplyTo, o.Client)
 }
diff --git a/internal/api/router.go b/internal/api/router.go
index c681b8208..dbaee2184 100644
--- a/internal/api/router.go
+++ b/internal/api/router.go
@@ -198,6 +198,7 @@ func newGinRouter(ctx context.Context, client discovery.SvcDiscoveryRegistry, co
 		f := NewFriendApi(relation.NewFriendClient(friendConn))
 		friendRouterGroup := r.Group("/friend")
 		friendRouterGroup.POST("/delete_friend", f.DeleteFriend)
+		friendRouterGroup.POST("/delete_friend_oneway", f.DeleteFriendOneway)
 		friendRouterGroup.POST("/get_friend_apply_list", f.GetFriendApplyList)
 		friendRouterGroup.POST("/get_designated_friend_apply", f.GetDesignatedFriendsApply)
 		friendRouterGroup.POST("/get_self_friend_apply_list", f.GetSelfApplyList)
diff --git a/internal/rpc/conversation/conversation.go b/internal/rpc/conversation/conversation.go
index 1b86e6b8b..c443bb638 100644
--- a/internal/rpc/conversation/conversation.go
+++ b/internal/rpc/conversation/conversation.go
@@ -893,4 +893,3 @@ func (c *conversationServer) ClearBurnExpiredMsgs(ctx context.Context, req *pbco
 	}
 	return &pbconversation.ClearBurnExpiredMsgsResp{Count: processed}, nil
 }
-
diff --git a/internal/rpc/relation/friend.go b/internal/rpc/relation/friend.go
index da6d360ea..556a81cc5 100644
--- a/internal/rpc/relation/friend.go
+++ b/internal/rpc/relation/friend.go
@@ -286,6 +286,29 @@ func (s *friendServer) DeleteFriend(ctx context.Context, req *relation.DeleteFri
 	return &relation.DeleteFriendResp{}, nil
 }
 
+// DeleteFriendOneway 单向删除好友：只删除 ownerUserID 侧的 friend 文档；
+// 对端 friend 文档保留；仅向 owner 下发 FriendsInfoUpdateNotification 以刷新本地好友列表，
+// 不向对端发送 FriendDeletedNotification。
+func (s *friendServer) DeleteFriendOneway(ctx context.Context, req *relation.DeleteFriendReq) (resp *relation.DeleteFriendResp, err error) {
+	if err := authverify.CheckAccessV3(ctx, req.OwnerUserID, s.config.Share.IMAdminUserID); err != nil {
+		return nil, err
+	}
+
+	_, err = s.db.FindFriendsWithError(ctx, req.OwnerUserID, []string{req.FriendUserID})
+	if err != nil {
+		return nil, err
+	}
+
+	if err := s.db.Delete(ctx, req.OwnerUserID, []string{req.FriendUserID}); err != nil {
+		return nil, err
+	}
+
+	s.notificationSender.FriendDeletedOnewayNotification(ctx, req.OwnerUserID, req.FriendUserID)
+	s.webhookAfterDeleteFriend(ctx, &s.config.WebhooksConfig.AfterDeleteFriend, req)
+
+	return &relation.DeleteFriendResp{}, nil
+}
+
 // ok.
 func (s *friendServer) SetFriendRemark(ctx context.Context, req *relation.SetFriendRemarkReq) (resp *relation.SetFriendRemarkResp, err error) {
 	if err = s.webhookBeforeSetFriendRemark(ctx, &s.config.WebhooksConfig.BeforeSetFriendRemark, req); err != nil && err != servererrs.ErrCallbackContinue {
diff --git a/internal/rpc/relation/notification.go b/internal/rpc/relation/notification.go
index d9d773c76..10f7e7736 100644
--- a/internal/rpc/relation/notification.go
+++ b/internal/rpc/relation/notification.go
@@ -241,6 +241,18 @@ func (f *FriendNotificationSender) FriendDeletedNotification(ctx context.Context
 	f.Notification(ctx, req.OwnerUserID, req.FriendUserID, constant.FriendDeletedNotification, &tips)
 }
 
+// FriendDeletedOnewayNotification 单向删好友：仅通知操作方本人刷新好友列表，
+// 不向对端发送 FriendDeletedNotification，对端仍保留「你是 TA 好友」的关系。
+func (f *FriendNotificationSender) FriendDeletedOnewayNotification(ctx context.Context, ownerUserID, friendUserID string) {
+	tips := sdkws.FriendsInfoUpdateTips{
+		FromToUserID: &sdkws.FromToUserID{ToUserID: ownerUserID},
+		FriendIDs:    []string{friendUserID},
+	}
+	f.setSortVersion(ctx, &tips.FriendVersion, &tips.FriendVersionID,
+		database.FriendVersionName, ownerUserID, &tips.FriendSortVersion)
+	f.Notification(ctx, ownerUserID, ownerUserID, constant.FriendsInfoUpdateNotification, &tips)
+}
+
 func (f *FriendNotificationSender) setVersion(ctx context.Context, version *uint64, versionID *string, collName string, id string) {
 	versions := versionctx.GetVersionLog(ctx).Get()
 	for _, coll := range versions {
diff --git a/pkg/common/storage/database/mgo/user.go b/pkg/common/storage/database/mgo/user.go
index 25044cb1d..cf7e3479a 100644
--- a/pkg/common/storage/database/mgo/user.go
+++ b/pkg/common/storage/database/mgo/user.go
@@ -82,7 +82,6 @@ func (u *UserMgo) UpdateByMap(ctx context.Context, userID string, args map[strin
 		"first_name",
 		"last_name",
 		"full_name",
-		"remark",
 		"face_url",
 		"phone_number",
 		"area_code",
diff --git a/protocol b/protocol
index a9d1f9d49..9e40541a8 160000
--- a/protocol
+++ b/protocol
@@ -1 +1 @@
-Subproject commit a9d1f9d497b399e9c1bc9bcf7b752a24c15959ec
+Subproject commit 9e40541a87bb803959895e635a1923f4a6550952