diff --git a/.Lib9c.Tests/TableData/WorldBossRankingRewardSheetTest.cs b/.Lib9c.Tests/TableData/WorldBossRankingRewardSheetTest.cs
index 67e80f3e03..eaddf7e04c 100644
--- a/.Lib9c.Tests/TableData/WorldBossRankingRewardSheetTest.cs
+++ b/.Lib9c.Tests/TableData/WorldBossRankingRewardSheetTest.cs
@@ -24,8 +24,8 @@ public class WorldBossRankingRewardSheetTest
 14,900002,11,100,0,0,10011,560,10012,150,10013,40,1500000,600201,100,500000,1000
 15,900002,0,0,1,30,10011,370,10012,105,10013,25,500000,600201,50,500000,100
 16,900002,0,0,31,50,10011,230,10012,60,10013,10,250000,600201,50,500000,100
-17,900002,0,0,51,70,10011,75,10012,20,10013,5,125000,600201,50,500000,100
-18,900002,0,0,71,100,10011,40,10012,10,0,0,100000,600201,50,500000,100
+17,900002,0,0,51,70,10011,75,10012,20,10013,5,125000,600201,50,0,0
+18,900002,0,0,71,100,10011,40,10012,10,0,0,100000,600201,50,,
 ";
 
         [Fact]
@@ -68,16 +68,20 @@ public void FIndRow_Throw_ArgumentException()
             Assert.Throws<ArgumentException>(() => sheet.FindRow(900003, 0, 0));
         }
 
-        [Fact]
-        public void GetRewards()
+        [Theory]
+        [InlineData(900001, 1, 0, 6)]
+        [InlineData(900002, 600, 60, 5)]
+        [InlineData(900002, 800, 80, 4)]
+        public void GetRewards(int bossId, int ranking, int rate, int expected)
         {
             var sheet = new WorldBossRankingRewardSheet();
             sheet.Set(Csv);
-            var row = sheet.FindRow(900001, 1, 0);
+            var row = sheet.FindRow(bossId, ranking, rate);
             var tableSheets = new TableSheets(TableSheetsImporter.ImportSheets());
             var rewards = row.GetRewards(tableSheets.RuneSheet, tableSheets.MaterialItemSheet);
 
-            Assert.Equal(6, rewards.Count);
+            Assert.Equal(expected, rewards.Count);
+            Assert.All(rewards, fav => Assert.True(fav.Sign > 0));
         }
     }
 }
diff --git a/Lib9c/TableData/WorldBossRankingRewardSheet.cs b/Lib9c/TableData/WorldBossRankingRewardSheet.cs
index 5e0b639fb4..14f5218748 100644
--- a/Lib9c/TableData/WorldBossRankingRewardSheet.cs
+++ b/Lib9c/TableData/WorldBossRankingRewardSheet.cs
@@ -48,7 +48,12 @@ public override void Set(IReadOnlyList<string> fields)
                 for (int i = 0; i < 3; i++)
                 {
                     var offset = i * 2;
-                    Runes.Add(new RuneInfo(ParseInt(fields[6 + offset]), ParseInt(fields[7 + offset])));
+                    var id = TryParseInt(fields[6 + offset], out var value) ? value : 0;
+                    var quantity = TryParseInt(fields[7 + offset], out value) ? value : 0;
+                    if (id != 0 && quantity > 0)
+                    {
+                        Runes.Add(new RuneInfo(id, quantity));
+                    }
                 }
                 Crystal = ParseInt(fields[12]);
 
@@ -58,8 +63,12 @@ public override void Set(IReadOnlyList<string> fields)
                     for (int i = 0; i < 2; i++)
                     {
                         var offset = i * 2;
-                        Materials.Add(
-                            (ParseInt(fields[13 + offset]), ParseInt(fields[14 + offset])));
+                        var id = TryParseInt(fields[13 + offset], out var value) ? value : 0;
+                        var quantity = TryParseInt(fields[14 + offset], out value) ? value : 0;
+                        if (id != 0 && quantity > 0)
+                        {
+                            Materials.Add((id, quantity));
+                        }
                     }
                 }
             }
@@ -72,11 +81,8 @@ public List<FungibleAssetValue> GetRewards(
                 {
                     Crystal * CrystalCalculator.CRYSTAL
                 };
-                result.AddRange(Runes
-                    .Where(runeInfo => runeInfo.RuneQty > 0)
-                    .Select(runeInfo =>
-                        RuneHelper.ToFungibleAssetValue(runeSheet[runeInfo.RuneId],
-                            runeInfo.RuneQty)));
+                result.AddRange(Runes.Select(runeInfo =>
+                    RuneHelper.ToFungibleAssetValue(runeSheet[runeInfo.RuneId], runeInfo.RuneQty)));
 
                 foreach (var (itemId, quantity) in Materials)
                 {