diff --git a/app/Member/MemberResource.php b/app/Member/MemberResource.php
index a24a7282..972977d8 100644
--- a/app/Member/MemberResource.php
+++ b/app/Member/MemberResource.php
@@ -54,6 +54,7 @@ class MemberResource extends JsonResource
             'other_country' => $this->other_country,
             'confession_id' => $this->confession_id,
             'letter_address' => $this->letter_address,
+            'bill_kind' => optional($this->bill_kind)->value,
             'bill_kind_name' => optional($this->bill_kind)->value,
             'has_nami' => null !== $this->nami_id,
             'children_phone' => $this->children_phone,
diff --git a/tests/Feature/Member/EditTest.php b/tests/Feature/Member/EditTest.php
index 13b4aa6c..fb48b263 100644
--- a/tests/Feature/Member/EditTest.php
+++ b/tests/Feature/Member/EditTest.php
@@ -61,4 +61,19 @@ class EditTest extends TestCase
             'multiply_more_pv' => true,
         ], $response, 'data');
     }
+
+    public function testItDisplaysSystem(): void
+    {
+        $this->withoutExceptionHandling()->login()->loginNami();
+        $member = Member::factory()
+            ->defaults()
+            ->emailBillKind()
+            ->create();
+
+        $response = $this->get(route('member.edit', ['member' => $member]));
+
+        $this->assertInertiaHas([
+            'bill_kind' => 'E-Mail',
+        ], $response, 'data');
+    }
 }