Tomo-kun, an office worker, is neighbors with Aki-san. Aki often comes over to Tomo's house to drink alcohol with him, but when she gets drunk her secret is revealed, she's actually... part cat! As Tomo-kun ...

The organization known as “Gigant” has sent one of their best men to kill a cute young high school girl. However, the assassin seems reluctant… Why did he get these strange orders? What’s the secret ...