diff --git a/.Lib9c.Tests/Action/CustomEquipmentCraft/CustomEquipmentCraftTest.cs b/.Lib9c.Tests/Action/CustomEquipmentCraft/CustomEquipmentCraftTest.cs
index f2cf3d3605..c136162a67 100644
--- a/.Lib9c.Tests/Action/CustomEquipmentCraft/CustomEquipmentCraftTest.cs
+++ b/.Lib9c.Tests/Action/CustomEquipmentCraft/CustomEquipmentCraftTest.cs
@@ -108,13 +108,13 @@ public CustomEquipmentCraftTest()
                 {
                     new ()
                     {
-                        MinCp = 900,
-                        MaxCp = 1000,
+                        MinCp = 78811,
+                        MaxCp = 118133,
                         ItemSubType = ItemSubType.Weapon,
                         ElementalType = ElementalType.Wind,
                     },
                 },
-                10, null,
+                21600, null,
             };
 
             // Random Icon
@@ -129,13 +129,13 @@ public CustomEquipmentCraftTest()
                 {
                     new ()
                     {
-                        MinCp = 900,
-                        MaxCp = 1000,
+                        MinCp = 196780,
+                        MaxCp = 236104,
                         ItemSubType = ItemSubType.Weapon,
-                        ElementalType = ElementalType.Wind,
+                        ElementalType = ElementalType.Water,
                     },
                 },
-                10, null, 8,
+                21600, null, 17,
             };
 
             // Move to next group with additional cost
@@ -150,13 +150,13 @@ public CustomEquipmentCraftTest()
                 {
                     new ()
                     {
-                        MinCp = 900,
-                        MaxCp = 1000,
+                        MinCp = 78811,
+                        MaxCp = 118133,
                         ItemSubType = ItemSubType.Weapon,
                         ElementalType = ElementalType.Wind,
                     },
                 },
-                10, null,
+                21600, null,
             };
             yield return new object?[]
             {
@@ -169,13 +169,13 @@ public CustomEquipmentCraftTest()
                 {
                     new ()
                     {
-                        MinCp = 9000,
-                        MaxCp = 10000,
+                        MinCp = 127372,
+                        MaxCp = 166695,
                         ItemSubType = ItemSubType.Weapon,
                         ElementalType = ElementalType.Wind,
                     },
                 },
-                12, null,
+                21600 * 2, null,
             };
             yield return new object?[]
             {
@@ -188,13 +188,13 @@ public CustomEquipmentCraftTest()
                 {
                     new ()
                     {
-                        MinCp = 90000,
-                        MaxCp = 100000,
+                        MinCp = 231654,
+                        MaxCp = 270976,
                         ItemSubType = ItemSubType.Weapon,
                         ElementalType = ElementalType.Wind,
                     },
                 },
-                15, null,
+                21600 * 8, null,
             };
 
             // Multiple slots
@@ -210,20 +210,20 @@ public CustomEquipmentCraftTest()
                 {
                     new ()
                     {
-                        MinCp = 900,
-                        MaxCp = 1000,
+                        MinCp = 78811,
+                        MaxCp = 118133,
                         ItemSubType = ItemSubType.Weapon,
                         ElementalType = ElementalType.Wind,
                     },
                     new ()
                     {
-                        MinCp = 800,
-                        MaxCp = 900,
+                        MinCp = 196780,
+                        MaxCp = 236104,
                         ItemSubType = ItemSubType.Weapon,
                         ElementalType = ElementalType.Wind,
                     },
                 },
-                10, null,
+                21600, null,
             };
             yield return new object?[]
             {
@@ -236,20 +236,20 @@ public CustomEquipmentCraftTest()
                 {
                     new ()
                     {
-                        MinCp = 900,
-                        MaxCp = 1000,
+                        MinCp = 78811,
+                        MaxCp = 118133,
                         ItemSubType = ItemSubType.Weapon,
                         ElementalType = ElementalType.Wind,
                     },
                     new ()
                     {
-                        MinCp = 800,
-                        MaxCp = 900,
+                        MinCp = 196780,
+                        MaxCp = 236104,
                         ItemSubType = ItemSubType.Weapon,
                         ElementalType = ElementalType.Wind,
                     },
                 },
-                10, null,
+                21600, null,
             };
             yield return new object?[]
             {
@@ -264,34 +264,34 @@ public CustomEquipmentCraftTest()
                 {
                     new ()
                     {
-                        MinCp = 500,
-                        MaxCp = 600,
+                        MinCp = 39487,
+                        MaxCp = 78810,
                         ItemSubType = ItemSubType.Weapon,
-                        ElementalType = ElementalType.Water,
+                        ElementalType = ElementalType.Normal,
                     },
                     new ()
                     {
-                        MinCp = 300,
-                        MaxCp = 400,
+                        MinCp = 78811,
+                        MaxCp = 118133,
                         ItemSubType = ItemSubType.Weapon,
                         ElementalType = ElementalType.Wind,
                     },
                     new ()
                     {
-                        MinCp = 100,
-                        MaxCp = 200,
+                        MinCp = 39487,
+                        MaxCp = 78810,
                         ItemSubType = ItemSubType.Weapon,
-                        ElementalType = ElementalType.Water,
+                        ElementalType = ElementalType.Wind,
                     },
                     new ()
                     {
-                        MinCp = 900,
-                        MaxCp = 1000,
+                        MinCp = 39487,
+                        MaxCp = 78810,
                         ItemSubType = ItemSubType.Weapon,
-                        ElementalType = ElementalType.Normal,
+                        ElementalType = ElementalType.Fire,
                     },
                 },
-                10, null, 4,
+                21600, null, 22,
             };
         }
 
@@ -321,7 +321,7 @@ public CustomEquipmentCraftTest()
             {
                 new List<CustomCraftData>
                 {
-                    new () { RecipeId = 1, SlotIndex = 0, IconId = 10131001, },
+                    new () { RecipeId = 1, SlotIndex = 0, IconId = 10140000, },
                 },
                 true, 0, false, new List<TestResult>(), 0, typeof(NotEnoughRelationshipException),
             };
diff --git a/.Lib9c.Tests/Action/GrindingTest.cs b/.Lib9c.Tests/Action/GrindingTest.cs
index ef136afcb7..1a83299bb3 100644
--- a/.Lib9c.Tests/Action/GrindingTest.cs
+++ b/.Lib9c.Tests/Action/GrindingTest.cs
@@ -326,11 +326,11 @@ public void CalculateMaterialReward(int[] equipmentIds, Dictionary<int, int> exp
             );
 
             Assert.Equal(expected.Count, actual.Count);
-            foreach (var (material, count) in actual)
+            foreach (var (material, actualCount) in actual)
             {
-                if (expected.TryGetValue(material.Id, out var actualCount))
+                if (expected.TryGetValue(material.Id, out var expectedCount))
                 {
-                    Assert.Equal(count, actualCount);
+                    Assert.Equal(expectedCount, actualCount);
                 }
                 else
                 {
@@ -422,9 +422,9 @@ private class CalculateMaterialRewardData : IEnumerable<object[]>
                     new[] { 10750008, 10760000, 20160000, 20160003 },
                     new Dictionary<int, int>
                     {
-                        { 306085, 15 },
-                        { 600401, 35 },
-                        { 600402, 21 },
+                        { 306085, 15 },  // 5 + 10 + 0 + 0
+                        { 600401, 12 },  // 0 + 0 + 2 + 10
+                        { 600402, 23 },  // 0 + 0 + 3 + 20
                     },
                 },
                 new object[]
diff --git a/Lib9c/Helper/CustomCraftHelper.cs b/Lib9c/Helper/CustomCraftHelper.cs
index 62a5367cf7..ebb6b2eff2 100644
--- a/Lib9c/Helper/CustomCraftHelper.cs
+++ b/Lib9c/Helper/CustomCraftHelper.cs
@@ -1,10 +1,8 @@
 #nullable enable
 using System;
 using System.Collections.Generic;
-using System.Collections.Immutable;
 using System.Linq;
 using System.Numerics;
-using BTAI;
 using Libplanet.Action;
 using Nekoyume.Battle;
 using Nekoyume.Model.Item;