Synopsis:

Leader of a gang of thugs, Mafuyu is expelled from her high school following a violent fight. Promising her mother never to fight again, she joins the private establishment Midoriagoka. But the day before her arrival, she is confronted with a brawl in the middle of the street and saves a young man in danger … In danger, really? The latter is in fact his main teacher: a bit sadistic, he will force Mafuyu to continue fighting! To protect her identity, while carrying out the orders of her sadistic teacher, the young girl will have no choice but to hide behind … a rabbit mask ?!