diff --git a/src/idz/db/index.ts b/src/idz/db/index.ts
index 63b193c..b42e5ef 100644
--- a/src/idz/db/index.ts
+++ b/src/idz/db/index.ts
@@ -9,6 +9,7 @@ import { SqlProfileRepository } from "./profile";
 import { SqlSettingsRepository } from "./settings";
 import { SqlStoryRepository } from "./story";
 import { SqlTeamRepository } from "./team";
+import { SqlTeamAutoRepository } from "./teamAuto";
 import { SqlTeamMemberRepository } from "./teamMember";
 import { SqlTicketsRepository } from "./tickets";
 import { SqlTimeAttackRepository } from "./timeAttack";
@@ -57,6 +58,10 @@ class TransactionImpl implements Repo.Transaction {
     return new SqlTeamRepository(this._conn);
   }
 
+  teamAuto(): Repo.TeamAutoRepository {
+    return new SqlTeamAutoRepository(this._conn);
+  }
+
   teamMembers(): Repo.TeamMemberRepository {
     return new SqlTeamMemberRepository(this._conn);
   }
diff --git a/src/idz/db/teamAuto.ts b/src/idz/db/teamAuto.ts
new file mode 100644
index 0000000..6f91d87
--- /dev/null
+++ b/src/idz/db/teamAuto.ts
@@ -0,0 +1,44 @@
+import * as sql from "sql-bricks-postgres";
+import { ClientBase } from "pg";
+
+import { Team, TeamAuto } from "../model/team";
+import { TeamAutoRepository } from "../repo";
+import { Id } from "../../db";
+
+export class SqlTeamAutoRepository implements TeamAutoRepository {
+  constructor(private readonly _conn: ClientBase) {}
+
+  async peek(): Promise<[TeamAuto, Id<Team>] | undefined> {
+    const peekSql = sql
+      .select("tt.*")
+      .from("idz.team_auto tt")
+      .orderBy("serial_no desc", "name_idx desc")
+      .limit(1)
+      .toParams();
+
+    const { rows } = await this._conn.query(peekSql);
+    const row = rows[0];
+
+    return (
+      row && [
+        {
+          serialNo: row.serial_no,
+          nameIdx: row.name_idx,
+        },
+        row.id,
+      ]
+    );
+  }
+
+  async push(teamId: Id<Team>, auto: TeamAuto): Promise<void> {
+    const pushSql = sql
+      .insert("idz.team_auto", {
+        id: teamId,
+        serial_no: auto.serialNo,
+        name_idx: auto.nameIdx,
+      })
+      .toParams();
+
+    await this._conn.query(pushSql);
+  }
+}
diff --git a/src/idz/repo.ts b/src/idz/repo.ts
index 5e2f238..6cb8111 100644
--- a/src/idz/repo.ts
+++ b/src/idz/repo.ts
@@ -69,6 +69,12 @@ export interface TeamRepository {
   delete(id: Id<Model.Team>): Promise<void>;
 }
 
+export interface TeamAutoRepository {
+  peek(): Promise<[Model.TeamAuto, Id<Model.Team>] | undefined>;
+
+  push(teamId: Id<Model.Team>, auto: Model.TeamAuto): Promise<void>;
+}
+
 export interface TeamMemberRepository {
   findTeam(profileId: Id<Model.Profile>): Promise<Id<Model.Team> | undefined>;
 
@@ -131,6 +137,8 @@ export interface Repositories {
 
   teams(): TeamRepository;
 
+  teamAuto(): TeamAutoRepository;
+
   teamMembers(): TeamMemberRepository;
 
   tickets(): FacetRepository<Model.Tickets>;