Growing up a target of bullying, a senior high student, Shiroishi Hajime, is a skilled karateka, but goes completely weak at the knees with fear when it comes to fighting. Among all this, a power junkie and classmate of Ichi who does nothing but fighting, Akakuma Dai, sets his eyes on Ichi. When Ichi starts to shed tears, all of a sudden a violent impulse that resided inside him is unleashed.

Note: Includes two extra chapters.