Sakura is your average male middle school student who is destined to become a pedophile who will discover a way to prevent all women on the planet from aging past the age of 12. In order to prevent this from happening Dokuro-chan is sent with her angelic powers to kill Sakura before he has a chance to develop this technology. Dokuro though, wants to attempt to stop Sakura without resulting to killing him.
The only problem is Dokura has a small tendency to quickly pull out her club, Excalibur, without a second thought and clubber Sakura to death, only to quickly bring him back to life. Now Dokura must find a way to save Sakura from his feature, while Sakura must do everything in his power to keep Dokura in check and not bring destructive chaos to his world.