diff --git a/core/service.go b/core/service.go
index 08d32f0..9de61ba 100644
--- a/core/service.go
+++ b/core/service.go
@@ -123,11 +123,9 @@ type serviceDescription struct {
 	updateUserinfo        func(info usertokeninfo) (bool, string, string)
 	getProviderInfo       func(platform string, uid string) (string, string, error)
 
-	divisionsForUsersSerialized []byte
-	divisionsSerialized         []byte
-	serviceSerialized           []byte
-	serviceSummarySerialized    []byte
-	divisionsSplits             map[string][]byte
+	divisionsSerialized []byte
+	serviceSerialized   []byte
+	divisionsSplits     map[string][]byte
 }
 
 func (sh *serviceDescription) isValidToken(apiToken primitive.ObjectID) bool {
@@ -189,9 +187,9 @@ func (sh *serviceDescription) prepare(mg *Maingate) error {
 	}
 
 	divsForUsers := make(map[string]*DivisionForUser)
-	var namesOnly []string
+	defaultDivNames := make(map[string]bool)
 	for dn, div := range divs {
-		namesOnly = append(namesOnly, dn)
+		defaultDivNames[dn] = true
 		if div.State == DivisionState_Closed {
 			continue
 		}
@@ -230,25 +228,27 @@ func (sh *serviceDescription) prepare(mg *Maingate) error {
 	}
 
 	sh.divisionsSerialized, _ = json.Marshal(divs)
-	sh.divisionsForUsersSerialized, _ = json.Marshal(divsForUsers)
-
-	if len(sh.VersionSplits) == 0 {
-		sh.VersionSplits = map[string]string{
-			"default": strings.Join(namesOnly, ","),
-		}
-	}
-
 	sh.divisionsSplits = make(map[string][]byte)
 	for ver, divnamesT := range sh.VersionSplits {
 		divnames := strings.Split(divnamesT, ",")
 		split := make(map[string]*DivisionForUser)
 		for _, divname := range divnames {
 			split[divname] = divsForUsers[divname]
+
+			// 스플릿 된 버전은 default에서 제거해야 한다.
+			delete(defaultDivNames, divname)
 		}
 		splitMarshaled, _ := json.Marshal(split)
 		sh.divisionsSplits[ver] = splitMarshaled
 	}
 
+	defaultsDivs := make(map[string]*DivisionForUser)
+	for divname := range defaultDivNames {
+		defaultsDivs[divname] = divsForUsers[divname]
+	}
+	defaultMarshaled, _ := json.Marshal(defaultsDivs)
+	sh.divisionsSplits["default"] = defaultMarshaled
+
 	sh.MaximumNumLinkAccount = mg.maingateConfig.MaximumNumLinkAccount
 	sh.mongoClient = mg.mongoClient
 	sh.auths = mg.auths
@@ -261,7 +261,6 @@ func (sh *serviceDescription) prepare(mg *Maingate) error {
 
 	sh.wl = mg.wl
 	sh.bl = mg.bl
-	sh.serviceSummarySerialized, _ = json.Marshal(sh.ServiceDescriptionSummary)
 	sh.serviceSerialized, _ = json.Marshal(sh)
 
 	logger.Println("service is ready :", sh.ServiceCode, string(sh.serviceSerialized))