diff --git a/src/main/kotlin/com/ray650128/pcredive/database/model/MemberRecord.kt b/src/main/kotlin/com/ray650128/pcredive/database/model/MemberRecord.kt
index 0d20d31..254f03a 100644
--- a/src/main/kotlin/com/ray650128/pcredive/database/model/MemberRecord.kt
+++ b/src/main/kotlin/com/ray650128/pcredive/database/model/MemberRecord.kt
@@ -9,18 +9,18 @@ import org.litote.kmongo.newId
 data class MemberRecord(
     @Contextual var _id: Id<MemberRecord> = newId(),
     @Contextual var memberId: Id<Member>? = null,
-    var record1: Record = Record(""),
-    var record1c: Record = Record(""),
-    var record2: Record = Record(""),
-    var record2c: Record = Record(""),
-    var record3: Record = Record(""),
-    var record3c: Record = Record(""),
+    var record1: Record = Record(),
+    var record1c: Record = Record(),
+    var record2: Record = Record(),
+    var record2c: Record = Record(),
+    var record3: Record = Record(),
+    var record3c: Record = Record(),
     var createdAt: Long? = null,
     var updatedAt: Long? = null
 )
 
 @Serializable
 data class Record(
-    var boss: String,
+    var boss: String? = null,
     var damage: Int? = null
 )