diff --git a/projects/kit/offline/src/lib/offline-coordinator.service.spec.ts b/projects/kit/offline/src/lib/offline-coordinator.service.spec.ts
index 57bd9b3..669291e 100644
--- a/projects/kit/offline/src/lib/offline-coordinator.service.spec.ts
+++ b/projects/kit/offline/src/lib/offline-coordinator.service.spec.ts
@@ -162,4 +162,59 @@ describe('OfflineCoordinatorService', () => {
     await expect(newActivation).resolves.toBe(true);
     expect(sessionState.userId).toBe(9);
   });
+
+  it('preserves user scope 0 from remote activation through the first pull', async () => {
+    let lastUserId: number | null = null;
+    let manifest: OfflineSessionManifest | null = null;
+    const pull = vi.fn(async (_scope: { userId: number; groupId: number }) => undefined);
+    const repository = {
+      initialize: vi.fn(async () => undefined),
+      getLastUserId: vi.fn(async () => lastUserId),
+      setLastUserId: vi.fn(async (userId: number) => {
+        lastUserId = userId;
+      }),
+      getSessionManifest: vi.fn(async () => manifest),
+      putSessionManifest: vi.fn(async (_userId: number, value: OfflineSessionManifest) => {
+        manifest = structuredClone(value);
+      }),
+      clearUser: vi.fn(async () => undefined),
+      clearGroup: vi.fn(async () => undefined),
+    };
+    const network = {
+      state: signal('connected'),
+      initialize: vi.fn(async () => undefined),
+    };
+    const sync = {
+      syncState: signal('idle'),
+      pendingCount: signal(0),
+      conflicts: signal([]),
+      initialize: vi.fn(async () => undefined),
+      resetSession: vi.fn(async () => undefined),
+      revokeSession: vi.fn(),
+      refreshSession: vi.fn(async () => {
+        const remote = await TestBed.inject(OfflineSessionService).getSession();
+        await Promise.all((remote?.scopes ?? []).map((scope) => pull(scope)));
+      }),
+      refreshLocalSession: vi.fn(async () => undefined),
+      discardAllPending: vi.fn(async () => undefined),
+      flush: vi.fn(async () => undefined),
+    };
+    TestBed.resetTestingModule();
+    TestBed.configureTestingModule({
+      providers: [
+        OfflineCoordinatorService,
+        OfflineSessionService,
+        { provide: OFFLINE_REPOSITORY, useValue: repository },
+        { provide: OfflineNetworkService, useValue: network },
+        { provide: OfflineSyncService, useValue: sync },
+      ],
+    });
+    const coordinator = TestBed.inject(OfflineCoordinatorService);
+
+    await expect(coordinator.prepareRemoteSession(7, [0], 'subject')).resolves.toBe(true);
+    await coordinator.resumeRemoteSession();
+
+    expect(manifest).toMatchObject({ userId: 7, scopeIds: [0], authSubject: 'subject' });
+    expect(pull).toHaveBeenCalledWith({ userId: 7, groupId: 0 });
+  });
 });
diff --git a/projects/kit/offline/src/lib/offline-session.service.spec.ts b/projects/kit/offline/src/lib/offline-session.service.spec.ts
index 3e7c3d8..798724b 100644
--- a/projects/kit/offline/src/lib/offline-session.service.spec.ts
+++ b/projects/kit/offline/src/lib/offline-session.service.spec.ts
@@ -98,6 +98,16 @@ describe('OfflineSessionService shared-device boundary', () => {
     expect(service.activeManifest()).toMatchObject({ userId: 20, authSubject: 'uid-B' });
   });
 
+  it('user-scoped replicaのscope 0をmanifestとremote sessionに保持する', async () => {
+    await service.activateSession(10, [0], 'uid-A');
+
+    expect(service.activeManifest()).toMatchObject({ userId: 10, scopeIds: [0], authSubject: 'uid-A' });
+    await expect(service.getSession()).resolves.toEqual({
+      userId: 10,
+      scopes: [{ userId: 10, groupId: 0 }],
+    });
+  });
+
   it('同じuserIdでもauthSubjectが変わると旧主体の全scopeを継承しない', async () => {
     await service.initialize();
     await service.activateSession(10, [2], 'uid-B');
diff --git a/projects/kit/offline/src/lib/offline-session.service.ts b/projects/kit/offline/src/lib/offline-session.service.ts
index 55eb9e3..eea455c 100644
--- a/projects/kit/offline/src/lib/offline-session.service.ts
+++ b/projects/kit/offline/src/lib/offline-session.service.ts
@@ -53,7 +53,7 @@ export class OfflineSessionService {
   ): Promise<void | boolean> {
     await this.initialize();
     if (lease && !lease.isCurrent()) return false;
-    const normalizedScopeIds = [...new Set(scopeIds)].filter((id) => id !== 0).sort((a, b) => a - b);
+    const normalizedScopeIds = [...new Set(scopeIds)].sort((a, b) => a - b);
     const previousUserId = await this.#repository.getLastUserId();
     if (lease && !lease.isCurrent()) return false;
     let previous = previousUserId === userId ? ((await this.#repository.getSessionManifest<OfflineSessionManifest>(userId)) ?? null) : null;
diff --git a/projects/kit/src/lib/auth/auth-access.service.spec.ts b/projects/kit/src/lib/auth/auth-access.service.spec.ts
index 6dfd49f..658c715 100644
--- a/projects/kit/src/lib/auth/auth-access.service.spec.ts
+++ b/projects/kit/src/lib/auth/auth-access.service.spec.ts
@@ -6,6 +6,7 @@ import {
   KIT_AUTH_RECOVERY_CONFIG,
   KitAuthAccessService,
   KitAuthRecoveryService,
+  type KitAuthAccessLease,
   type KitAuthRecoveryConfig,
   type KitRemoteAccessRecovery,
 } from './auth-access.service';
@@ -61,6 +62,68 @@ describe('KitAuthRecoveryService', () => {
     expect(reauthenticate).toHaveBeenCalledOnce();
   });
 
+  it('invalidates the post-grant resume lease when access is revoked during recovery', async () => {
+    let markResumeStarted!: () => void;
+    let releaseResume!: () => void;
+    const resumeStarted = new Promise<void>((resolve) => {
+      markResumeStarted = resolve;
+    });
+    const resumeGate = new Promise<void>((resolve) => {
+      releaseResume = resolve;
+    });
+    const userVisibleEffect = vi.fn();
+    const { access, recovery } = setup({
+      remoteRecovery: {
+        availability: () => new Subject<boolean>(),
+        reauthenticate: async () => ({
+          activate: async () => true,
+          resume: async (lease) => {
+            markResumeStarted();
+            await resumeGate;
+            if (lease?.isCurrent()) userVisibleEffect();
+          },
+        }),
+      },
+    });
+    access.grantLocal();
+
+    const pending = recovery.recover();
+    await resumeStarted;
+    access.clear();
+    releaseResume();
+    await pending;
+
+    expect(userVisibleEffect).not.toHaveBeenCalled();
+    expect(access.mode).toBe('none');
+  });
+
+  it('does not reclaim a transition started by a synchronous remote-mode subscriber', async () => {
+    const userVisibleEffect = vi.fn();
+    const resume = vi.fn(async (lease?: KitAuthAccessLease) => {
+      if (lease?.isCurrent()) userVisibleEffect();
+    });
+    const { access, recovery } = setup({
+      remoteRecovery: {
+        availability: () => new Subject<boolean>(),
+        reauthenticate: async () => ({
+          activate: async () => true,
+          resume,
+        }),
+      },
+    });
+    access.grantLocal();
+    const subscription = access.mode$.subscribe((mode) => {
+      if (mode === 'remote') access.clear();
+    });
+
+    await recovery.recover();
+    subscription.unsubscribe();
+
+    expect(resume).not.toHaveBeenCalled();
+    expect(userVisibleEffect).not.toHaveBeenCalled();
+    expect(access.mode).toBe('none');
+  });
+
   it('coalesces concurrent recovery attempts into one flight', async () => {
     let resolveRecovery: ((value: false) => void) | undefined;
     const reauthenticate = vi.fn(
diff --git a/projects/kit/src/lib/auth/auth-access.service.ts b/projects/kit/src/lib/auth/auth-access.service.ts
index 3cbd38d..c82a79f 100644
--- a/projects/kit/src/lib/auth/auth-access.service.ts
+++ b/projects/kit/src/lib/auth/auth-access.service.ts
@@ -26,7 +26,15 @@ export interface KitRemoteAccessRecovery {
    * @returns `false` when a newer logout or identity transition superseded this activation.
    */
   activate(lease: KitAuthAccessLease): Promise<boolean>;
-  resume(): Promise<void>;
+  /**
+   * Resume remote-only work after access has been published.
+   *
+   * @param lease - Post-grant lease supplied by the kit. Check it after every await before
+   * navigation or other user-visible side effects, because logout or a newer identity transition
+   * may supersede this resume while transport work is settling. Optional for source compatibility
+   * with callers that manually resumed a recovery result before leases were introduced.
+   */
+  resume(lease?: KitAuthAccessLease): Promise<void>;
 }
 
 /** Recovery-specific authentication configuration consumed by {@link KitAuthRecoveryService}. */
@@ -99,9 +107,14 @@ export class KitAuthAccessService {
     this.#publish('local');
   }
 
-  /** Publish a remotely authenticated session. */
-  grantRemote(): void {
-    this.#publish('remote');
+  /**
+   * Publish a remotely authenticated session and return the lease that owns that publication.
+   *
+   * The revision is fixed before synchronous `mode$` subscribers run. A subscriber that starts a
+   * newer logout or identity transition therefore makes the returned lease stale.
+   */
+  grantRemote(): KitAuthAccessLease {
+    return this.#publish('remote');
   }
 
   /** Revoke both local and remote access. */
@@ -109,9 +122,11 @@ export class KitAuthAccessService {
     this.#publish('none');
   }
 
-  #publish(mode: KitAuthAccessMode): void {
+  #publish(mode: KitAuthAccessMode): KitAuthAccessLease {
     this.#revision += 1;
+    const revision = this.#revision;
     this.#mode.next(mode);
+    return { isCurrent: () => this.#revision === revision };
   }
 }
 
@@ -211,8 +226,8 @@ export class KitAuthRecoveryService {
     const recovery = this.#config.remoteRecovery;
     if (this.#destroyed || !recovery || this.#access.mode !== 'local') return;
     const lease = this.#access.beginTransition();
-    let expectedRevision = this.#access.revision;
-    const isCurrent = (): boolean => this.#access.revision === expectedRevision;
+    let currentLease = lease;
+    const isCurrent = (): boolean => currentLease.isCurrent();
     try {
       const result = await recovery.reauthenticate(lease);
       if (this.#destroyed || !isCurrent() || this.#access.mode !== 'local') return;
@@ -230,9 +245,9 @@ export class KitAuthRecoveryService {
         return;
       }
       this.#clearRetry();
-      this.#access.grantRemote();
-      expectedRevision = this.#access.revision;
-      await result.resume();
+      currentLease = this.#access.grantRemote();
+      if (!currentLease.isCurrent()) return;
+      await result.resume(currentLease);
     } catch (error) {
       if (this.#destroyed || !isCurrent()) return;
       if (isExplicitAuthDenial(error)) {
diff --git a/projects/kit/src/lib/auth/auth-guards.spec.ts b/projects/kit/src/lib/auth/auth-guards.spec.ts
index b526beb..f00d729 100644
--- a/projects/kit/src/lib/auth/auth-guards.spec.ts
+++ b/projects/kit/src/lib/auth/auth-guards.spec.ts
@@ -234,6 +234,59 @@ describe('kitRequireAuthorizedGuard', () => {
     expect(TestBed.inject(KitAuthAccessService).mode).toBe('remote');
   });
 
+  it("'user' → invalidates the post-grant resume lease before stale user-visible effects", async () => {
+    let markResumeStarted!: () => void;
+    let releaseResume!: () => void;
+    const resumeStarted = new Promise<void>((resolve) => {
+      markResumeStarted = resolve;
+    });
+    const resumeGate = new Promise<void>((resolve) => {
+      releaseResume = resolve;
+    });
+    const navigateAfterResume = vi.fn();
+    const onAuthorized = vi.fn(async () => ({
+      activate: async () => true,
+      resume: async (lease?: KitAuthAccessLease) => {
+        markResumeStarted();
+        await resumeGate;
+        if (lease?.isCurrent()) navigateAfterResume();
+      },
+    }));
+    setup('user', { onAuthorized });
+
+    const pending = runGuard(TestBed.runInInjectionContext(() => kitRequireAuthorizedGuard(routeStub, stateStub)));
+    await resumeStarted;
+    TestBed.inject(KitAuthAccessService).clear();
+    releaseResume();
+
+    await expect(pending).resolves.toBe(false);
+    expect(navigateAfterResume).not.toHaveBeenCalled();
+  });
+
+  it("'user' → does not reclaim a transition started by a synchronous remote-mode subscriber", async () => {
+    const navigateAfterResume = vi.fn();
+    const resume = vi.fn(async (lease?: KitAuthAccessLease) => {
+      if (lease?.isCurrent()) navigateAfterResume();
+    });
+    const onAuthorized = vi.fn(async () => ({
+      activate: async () => true,
+      resume,
+    }));
+    setup('user', { onAuthorized });
+    const access = TestBed.inject(KitAuthAccessService);
+    const subscription = access.mode$.subscribe((mode) => {
+      if (mode === 'remote') access.clear();
+    });
+
+    const result = await runGuard(TestBed.runInInjectionContext(() => kitRequireAuthorizedGuard(routeStub, stateStub)));
+    subscription.unsubscribe();
+
+    expect(result).toBe(false);
+    expect(resume).not.toHaveBeenCalled();
+    expect(navigateAfterResume).not.toHaveBeenCalled();
+    expect(access.mode).toBe('none');
+  });
+
   it("'user' → keeps verified remote access when only phased resume loses transport", async () => {
     const networkError = { status: 0 };
     const onAuthorized = vi.fn(async () => ({
diff --git a/projects/kit/src/lib/auth/auth-guards.ts b/projects/kit/src/lib/auth/auth-guards.ts
index a94e7a5..3c3fab9 100644
--- a/projects/kit/src/lib/auth/auth-guards.ts
+++ b/projects/kit/src/lib/auth/auth-guards.ts
@@ -302,19 +302,19 @@ export const kitRequireAuthorizedGuard: CanActivateFn = (_route, state) => {
     if (!lease.isCurrent()) return false;
     if (isRemoteAccessActivation(result)) {
       if (!(await result.activate(lease)) || !lease.isCurrent()) return false;
-      access.grantRemote();
-      const remoteRevision = access.revision;
+      const resumeLease = access.grantRemote();
+      if (!resumeLease.isCurrent()) return false;
       try {
-        await result.resume();
+        await result.resume(resumeLease);
       } catch (error) {
-        if (access.revision !== remoteRevision) return false;
+        if (!resumeLease.isCurrent()) return false;
         if (isExplicitAuthDenial(error)) {
           access.clear();
           throw error;
         }
         if (!isUnavailableError?.(error)) throw error;
       }
-      return access.revision === remoteRevision;
+      return resumeLease.isCurrent();
     }
     if (result === true) access.grantRemote();
     else access.clear();