This is a high-energy comedy featuring Mr. Haru, the strongest high school teacher and the love (?!) and friendship (?!) he has with his unique delinquent students!

This is Gokuakuzaka Jigoku High School, a lawless area full of notorious scoundrels. Usagi, a delinquent known as the ""black-rope violent hare,"" caused problems at his previous school and was forced to transfer to this school. Usagi showed up to the classroom full of malice and ready to fight, but when his delicate and cute homeroom teacher Haru Odajima showed up, the entire classroom basically turned into sweet children! Who is this guy?!