GTO. The steep teacher onzuka. Book 3. Fujisava T.

Despite eccentric antics, over time, Onizuke manages to gain the trust of students and the respect of teachers. It seems that the difficulties behind: Onzuka is a favorite of the school, a hero of news... But one day he meets a girl who had never seen in the classroom before. Her name is Urumi Kanzaki, her IQ rolls over for 200, she is the most dangerous person in this school, and she hates teachers with all her heart. Once a beloved teacher failed her, revealing a very painful secret, and now Kanzaki is waiting for betrayal from everyone else...