diff --git a/Lib9c/Action/AccountStateExtensions.cs b/Lib9c/Action/AccountStateExtensions.cs
index 1f552bc854..7cbe75769a 100644
--- a/Lib9c/Action/AccountStateExtensions.cs
+++ b/Lib9c/Action/AccountStateExtensions.cs
@@ -38,13 +38,6 @@ public static bool TryGetState<T>(this IAccountState states, Address address, ou
                 return true;
             }
 
-            Log.Error(
-                "Expected a {0}, but got invalid state ({1}): ({2}) {3}",
-                typeof(T).Name,
-                address.ToHex(),
-                raw?.GetType().Name,
-                raw
-            );
             result = default;
             return false;
         }
diff --git a/Lib9c/Action/HackAndSlash.cs b/Lib9c/Action/HackAndSlash.cs
index 926ee68fcf..86e247772b 100644
--- a/Lib9c/Action/HackAndSlash.cs
+++ b/Lib9c/Action/HackAndSlash.cs
@@ -122,7 +122,7 @@ public IAccountStateDelta Execute(
 
             var addressesHex = $"[{signer.ToHex()}, {AvatarAddress.ToHex()}]";
             var started = DateTimeOffset.UtcNow;
-            Log.Debug("{AddressesHex}HAS exec started", addressesHex);
+            Log.Verbose("{AddressesHex}HAS exec started", addressesHex);
 
             if (ApStoneCount > UsableApStoneCount)
             {
@@ -533,8 +533,8 @@ public IAccountStateDelta Execute(
                 );
             }
             sw.Stop();
-            Log.Verbose("{AddressesHex}HAS loop Simulate: {Elapsed}, Count: {PlayCount}",
-                addressesHex, sw.Elapsed, TotalPlayCount);
+            Log.Debug("{AddressesHex} {Source} loop Simulate: {Elapsed}, Count: {PlayCount}",
+                addressesHex, "HackAndSlash", sw.Elapsed, TotalPlayCount);
 
             // Update CrystalRandomSkillState.Stars by clearedWaveNumber. (add)
             skillState?.Update(starCount, crystalStageBuffSheet);
@@ -568,7 +568,7 @@ public IAccountStateDelta Execute(
             Log.Verbose("{AddressesHex}HAS Set States: {Elapsed}", addressesHex, sw.Elapsed);
 
             var totalElapsed = DateTimeOffset.UtcNow - started;
-            Log.Debug("{AddressesHex}HAS Total Executed Time: {Elapsed}", addressesHex, totalElapsed);
+            Log.Verbose("{AddressesHex}HAS Total Executed Time: {Elapsed}", addressesHex, totalElapsed);
             return states;
         }