diff --git a/src/MPWAR/Module/Economy/Domain/AccountRepository.php b/src/MPWAR/Module/Economy/Domain/AccountRepository.php
index 927441d..0a3168b 100644
--- a/src/MPWAR/Module/Economy/Domain/AccountRepository.php
+++ b/src/MPWAR/Module/Economy/Domain/AccountRepository.php
@@ -17,4 +17,11 @@ public function add(Account $account);
      * @return Account|null
      */
     public function search(AccountOwner $owner);
+
+    /**
+     * @param Account $account
+     *
+     * @return void
+     */
+    public function save(Account $account);
 }
diff --git a/src/MPWAR/Module/Economy/Infrastructure/Persistence/AccountRepositoryInMemory.php b/src/MPWAR/Module/Economy/Infrastructure/Persistence/AccountRepositoryInMemory.php
index a3be7cb..e0261ae 100644
--- a/src/MPWAR/Module/Economy/Infrastructure/Persistence/AccountRepositoryInMemory.php
+++ b/src/MPWAR/Module/Economy/Infrastructure/Persistence/AccountRepositoryInMemory.php
@@ -18,11 +18,21 @@ public function __construct()
 
     public function add(Account $account)
     {
-        $this->accounts->set($account->owner()->value(), $account);
+        $this->persist($account);
     }
 
     public function search(AccountOwner $owner)
     {
         return $this->accounts->get($owner->value());
     }
+
+    public function save(Account $account)
+    {
+        $this->persist($account);
+    }
+
+    private function persist(Account $account)
+    {
+        $this->accounts->set($account->owner()->value(), $account);
+    }
 }
diff --git a/src/MPWAR/Module/Economy/Infrastructure/Persistence/AccountRepositoryMySql.php b/src/MPWAR/Module/Economy/Infrastructure/Persistence/AccountRepositoryMySql.php
index d9604f5..06bf5f3 100644
--- a/src/MPWAR/Module/Economy/Infrastructure/Persistence/AccountRepositoryMySql.php
+++ b/src/MPWAR/Module/Economy/Infrastructure/Persistence/AccountRepositoryMySql.php
@@ -18,8 +18,7 @@ public function __construct(EntityManager $entityManager)
 
     public function add(Account $account)
     {
-        $this->entityManager->persist($account);
-        $this->entityManager->flush($account);
+        $this->persist($account);
     }
 
     public function search(AccountOwner $owner)
@@ -27,6 +26,17 @@ public function search(AccountOwner $owner)
         return $this->repository()->find($owner);
     }
 
+    public function save(Account $account)
+    {
+        $this->persist($account);
+    }
+
+    protected function persist(Account $account)
+    {
+        $this->entityManager->persist($account);
+        $this->entityManager->flush($account);
+    }
+
     private function repository()
     {
         return $this->entityManager->getRepository(Account::class);