diff --git a/app/Plan/CreatePlanDto.php b/app/Plan/CreatePlanDto.php
index 5aed171..370398b 100644
--- a/app/Plan/CreatePlanDto.php
+++ b/app/Plan/CreatePlanDto.php
@@ -2,9 +2,12 @@
 
 namespace App\Plan;
 
+use App\User\User;
+
 class CreatePlanDto
 {
     public function __construct(
         public string $name,
+        public User $user,
     ) {}
 }
diff --git a/app/Plan/Plan.php b/app/Plan/Plan.php
index c9aa923..2ac1bbc 100644
--- a/app/Plan/Plan.php
+++ b/app/Plan/Plan.php
@@ -2,11 +2,14 @@
 
 namespace App\Plan;
 
+use App\User\User;
+
 class Plan
 {
     public function __construct(
         private int $id,
         private string $name,
+        private User $user,
     ) {}
 
     public function getId(): int
@@ -18,4 +21,9 @@ class Plan
     {
         return $this->name;
     }
+
+    public function getUser(): User
+    {
+        return $this->user;
+    }
 }
diff --git a/app/Plan/UseCases/CreatePlan.php b/app/Plan/UseCases/CreatePlan.php
index 3780302..1c2ea6e 100644
--- a/app/Plan/UseCases/CreatePlan.php
+++ b/app/Plan/UseCases/CreatePlan.php
@@ -5,17 +5,22 @@ namespace App\Plan\UseCases;
 use App\Plan\CreatePlanDto;
 use App\Plan\Plan;
 use App\Plan\PlanRepository;
+use App\User\UserRepository;
 
 class CreatePlan
 {
     public function __construct(
         private PlanRepository $planRepo,
+        private UserRepository $userRepo,
     ) {}
 
     public function execute(CreatePlanRequest $request): Plan
     {
+        $user = $this->userRepo->find($request->userId);
+
         return $this->planRepo->create(new CreatePlanDto(
             name: $request->name,
+            user: $user,
         ));
     }
 }
diff --git a/app/Plan/UseCases/CreatePlanRequest.php b/app/Plan/UseCases/CreatePlanRequest.php
index 57f70e0..db9a51a 100644
--- a/app/Plan/UseCases/CreatePlanRequest.php
+++ b/app/Plan/UseCases/CreatePlanRequest.php
@@ -5,6 +5,7 @@ namespace App\Plan\UseCases;
 class CreatePlanRequest
 {
     public function __construct(
+        public int $userId,
         public string $name,
     ) {}
 }
diff --git a/tests/Fakes/FakePlanRepository.php b/tests/Fakes/FakePlanRepository.php
index e23db14..0e54ff3 100644
--- a/tests/Fakes/FakePlanRepository.php
+++ b/tests/Fakes/FakePlanRepository.php
@@ -16,6 +16,7 @@ class FakePlanRepository implements PlanRepository
         $plan = new Plan(
             id: $id,
             name: $dto->name,
+            user: $dto->user,
         );
         $this->existingPlans[$id] = $plan;