diff --git a/NineChronicles.DataProvider.Tests/WorldBossRankingQueryTest.cs b/NineChronicles.DataProvider.Tests/WorldBossRankingQueryTest.cs
index 4faa5f60..0fc28629 100644
--- a/NineChronicles.DataProvider.Tests/WorldBossRankingQueryTest.cs
+++ b/NineChronicles.DataProvider.Tests/WorldBossRankingQueryTest.cs
@@ -17,12 +17,15 @@ public class WorldBossRankingQueryTest : TestBase, IDisposable
     [Fact]
     public async Task WorldBossRanking()
     {
-        const string query = @"query {
-        worldBossRanking(raidId: 1) {
-            ranking
-            avatarName
-        }
-    }";
+        const string query = $@"query {{
+        worldBossRanking(raidId: 1) {{
+            blockIndex
+            rankingInfo {{
+                ranking
+                avatarName
+            }}
+        }}
+    }}";
         for (int idx = 0; idx < 2; idx++)
         {
             for (int i = 0; i < 200; i++)
@@ -43,7 +46,9 @@ public async Task WorldBossRanking()
 
         await Context.SaveChangesAsync();
         var result = await ExecuteAsync(query);
-        var models = (object[])((Dictionary<string, object>) ((ExecutionNode) result.Data).ToValue())["worldBossRanking"];
+        var data = (Dictionary<string, object>)((Dictionary<string, object>) ((ExecutionNode) result.Data).ToValue())["worldBossRanking"];
+        Assert.Equal(0L, data["blockIndex"]);
+        var models = (object[]) data["rankingInfo"];
         Assert.Equal(100, models.Length);
     }
 
diff --git a/NineChronicles.DataProvider/GraphTypes/WorldBossRankingInfoType.cs b/NineChronicles.DataProvider/GraphTypes/WorldBossRankingInfoType.cs
new file mode 100644
index 00000000..d360072c
--- /dev/null
+++ b/NineChronicles.DataProvider/GraphTypes/WorldBossRankingInfoType.cs
@@ -0,0 +1,21 @@
+namespace NineChronicles.DataProvider.GraphTypes
+{
+    using System.Collections.Generic;
+    using GraphQL.Types;
+    using NineChronicles.DataProvider.Store.Models;
+
+    public class WorldBossRankingInfoType : ObjectGraphType<(long blockIndex, List<WorldBossRankingModel> worldBossRankingModels)>
+    {
+        public WorldBossRankingInfoType()
+        {
+            Field<NonNullGraphType<LongGraphType>>(
+                "blockIndex",
+                resolve: context => context.Source.blockIndex
+            );
+            Field<NonNullGraphType<ListGraphType<WorldBossRankingType>>>(
+                "rankingInfo",
+                resolve: context => context.Source.worldBossRankingModels
+            );
+        }
+    }
+}
diff --git a/NineChronicles.DataProvider/Queries/NineChroniclesSummaryQuery.cs b/NineChronicles.DataProvider/Queries/NineChroniclesSummaryQuery.cs
index b02e3d59..000bc77f 100644
--- a/NineChronicles.DataProvider/Queries/NineChroniclesSummaryQuery.cs
+++ b/NineChronicles.DataProvider/Queries/NineChroniclesSummaryQuery.cs
@@ -210,7 +210,7 @@ public NineChroniclesSummaryQuery(MySqlStore store, StandaloneContext standalone
                 name: "dauQuery",
                 resolve: context => new DauQuery(store)
             );
-            Field<ListGraphType<WorldBossRankingType>>(
+            Field<WorldBossRankingInfoType>(
                 name: "worldBossRanking",
                 arguments: new QueryArguments(
                     new QueryArgument<NonNullGraphType<IntGraphType>>
@@ -248,7 +248,7 @@ public NineChroniclesSummaryQuery(MySqlStore store, StandaloneContext standalone
                         }
                     }
 
-                    return result;
+                    return (StandaloneContext.BlockChain?.Tip?.Index ?? 0, result);
                 });
             Field<IntGraphType>(
                 name: "worldBossTotalUsers",