Manga set GTO. Great Teacher Onizuka. Books 3 and 4

A set of two volumes of the manga "GTO. Great Teacher Onizuka. Book 3" and "GTO. Great Teacher Onizuka. Book 4".
Eikichi Onizuka is a slacker and a former member of a biker gang. But that's all in the past: he... is now twenty-two, which means it's time to become a respectable person and look for a job, preferably a prestigious one. For example, why not become a teacher at a school? After all, there are so many young beauties in high school! But Onizuka's dreams quickly collide with harsh reality: strangely enough, he actually manages to get a job as a teacher, but the class assigned to him is a gathering of incorrigible hooligans...
Despite his eccentric antics, over time Onizuka manages to win the trust of his students and the respect of the teachers. It seems that the difficulties are behind him: Onizuka is the school favorite, a news hero... But one day he meets a girl he has never seen in the class before. Her name is Urumi Kanzaki, her IQ is off the charts at over 200, she is the most dangerous person in this school, and she hates teachers with all her heart. Once, her favorite teacher let her down by revealing a very painful secret, and now Kanzaki is waiting for betrayal from everyone else...