High school girl, green was the leader of a female gang fight galore, of losing knowing since I was a kid, but it was unrelated to dominate the Academy as "Oniyakko-kai". Led by Ranko, Oniyakko-kai had to mediation as a "toy" to the president and principal of a high school girl in the back. By attacked by a principal, helped HARUE that has ran for his life from the demon guy Association, green day is made to wind up have a one-on-one battle and Ranko.