diff --git a/EpinelPS/GameData/GameData.cs b/EpinelPS/GameData/GameData.cs
index ef52d8b..c6d75fd 100644
--- a/EpinelPS/GameData/GameData.cs
+++ b/EpinelPS/GameData/GameData.cs
@@ -66,6 +66,7 @@ namespace EpinelPS.StaticInfo
         public readonly Dictionary<string, MidasProductRecord> mediasProductTable = [];
         public readonly Dictionary<int, TowerRecord> towerTable = [];
         public readonly Dictionary<int, TriggerRecord> TriggerTable = [];
+        public readonly Dictionary<int, InfracoreRecord> InfracoreTable = [];
 
 
         public byte[] Sha256Hash;
@@ -507,6 +508,12 @@ namespace EpinelPS.StaticInfo
             {
                 this.TriggerTable.Add(obj.id, obj);
             }
+
+            var infracoreTable = await LoadZip<InfracoreTable>("InfraCoreGradeTable.json", progress);
+            foreach (var obj in infracoreTable.records)
+            {
+                this.InfracoreTable.Add(obj.id, obj);
+            }
         }
 
         public MainQuestCompletionRecord? GetMainQuestForStageClearCondition(int stage)
diff --git a/EpinelPS/GameData/JsonStaticData.cs b/EpinelPS/GameData/JsonStaticData.cs
index 70ae09b..688d8fc 100644
--- a/EpinelPS/GameData/JsonStaticData.cs
+++ b/EpinelPS/GameData/JsonStaticData.cs
@@ -673,4 +673,20 @@
     {
         public List<TriggerRecord> records = [];
     }
+    public class InfracoreFunction
+    {
+        public int function;
+    }
+    public class InfracoreRecord
+    {
+        public int id;
+        public int grade;
+        public int reard_id;
+        public int infra_core_exp;
+        public List<InfracoreFunction> function_list = [];
+    }
+    public class InfracoreTable
+    {
+        public List<InfracoreRecord> records = [];
+    }
 }
diff --git a/EpinelPS/LobbyServer/Mission/ObtainAchievement.cs b/EpinelPS/LobbyServer/Mission/ObtainAchievement.cs
index a5ca168..09b51fe 100644
--- a/EpinelPS/LobbyServer/Mission/ObtainAchievement.cs
+++ b/EpinelPS/LobbyServer/Mission/ObtainAchievement.cs
@@ -1,3 +1,4 @@
+using EpinelPS.Database;
 using EpinelPS.StaticInfo;
 using EpinelPS.Utils;
 
@@ -30,6 +31,8 @@ namespace EpinelPS.LobbyServer.Mission
 
             response.Reward = NetUtils.MergeRewards(rewards, user);
 
+            JsonDb.Save();
+
             await WriteDataAsync(response);
         }
     }