Takamiya Honoka, is a regular student whose only problem seems to be that he sits next to Kagari Ayaka, the school's #1 beauty. They have never crossed words before, and even a small interaction between them...

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 behind that...