diff --git a/api/serializers.py b/api/serializers.py
new file mode 100644
index 0000000..251a6c1
--- /dev/null
+++ b/api/serializers.py
@@ -0,0 +1,9 @@
+from rest_framework import serializers
+
+from diary.models import Diary
+
+
+class DiarySerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Diary
+        fields = ['id', 'name', 'content', 'updated_at']
diff --git a/api/urls.py b/api/urls.py
new file mode 100644
index 0000000..26e2024
--- /dev/null
+++ b/api/urls.py
@@ -0,0 +1,13 @@
+from django.urls import path, include
+from rest_framework import routers
+
+from api import views
+
+app_name = 'api'
+
+router = routers.SimpleRouter()
+router.register('diaries', viewset=views.DiaryViewSet)
+
+urlpatterns = [
+    path('', include(router.urls)),
+]
\ No newline at end of file
diff --git a/api/views.py b/api/views.py
index 91ea44a..a57ea2a 100644
--- a/api/views.py
+++ b/api/views.py
@@ -1,3 +1,10 @@
 from django.shortcuts import render
+from rest_framework import viewsets
 
-# Create your views here.
+from api.serializers import DiarySerializer
+from diary.models import Diary
+
+
+class DiaryViewSet(viewsets.ModelViewSet):
+    queryset = Diary.objects.all()
+    serializer_class = DiarySerializer
diff --git a/config/settings.py b/config/settings.py
index d47595c..066c10e 100644
--- a/config/settings.py
+++ b/config/settings.py
@@ -37,6 +37,11 @@
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
+
+    'rest_framework',
+
+    'api.apps.ApiConfig',
+    'diary.apps.DiaryConfig',
 ]
 
 MIDDLEWARE = [
@@ -105,7 +110,7 @@
 
 LANGUAGE_CODE = 'en-us'
 
-TIME_ZONE = 'UTC'
+TIME_ZONE = 'Asia/Tokyo'
 
 USE_I18N = True
 
diff --git a/config/urls.py b/config/urls.py
index 5006338..4aa7c87 100644
--- a/config/urls.py
+++ b/config/urls.py
@@ -15,8 +15,9 @@
     2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
 """
 from django.contrib import admin
-from django.urls import path
+from django.urls import path, include
 
 urlpatterns = [
     path('admin/', admin.site.urls),
+    path('api/', include('api.urls')),
 ]
diff --git a/diary/admin.py b/diary/admin.py
index 8c38f3f..6093f94 100644
--- a/diary/admin.py
+++ b/diary/admin.py
@@ -1,3 +1,10 @@
 from django.contrib import admin
 
-# Register your models here.
+from diary.models import Diary
+
+
+class DiaryModelAdmin(admin.ModelAdmin):
+    list_display = ('name', 'content', 'updated_at')
+
+
+admin.site.register(Diary, DiaryModelAdmin)
diff --git a/diary/migrations/0001_initial.py b/diary/migrations/0001_initial.py
new file mode 100644
index 0000000..fa6e5e1
--- /dev/null
+++ b/diary/migrations/0001_initial.py
@@ -0,0 +1,23 @@
+# Generated by Django 4.2.8 on 2023-12-23 03:51
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Diary',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(blank=True, max_length=50)),
+                ('content', models.JSONField(blank=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+            ],
+        ),
+    ]
diff --git a/diary/models.py b/diary/models.py
index 71a8362..98c441c 100644
--- a/diary/models.py
+++ b/diary/models.py
@@ -1,3 +1,7 @@
 from django.db import models
 
-# Create your models here.
+
+class Diary(models.Model):
+    name = models.CharField(max_length=50, blank=True, null=False)
+    content = models.JSONField(blank=True, null=False)
+    updated_at = models.DateTimeField(auto_now=True)