Great Teacher Onizuka (1998): 1x1

First, I'm a Teacher

A former delinquent and gang member’s dreams to become a teacher come true but on the condition that he will quit immediately if he causes any problems. Onizuka is handed the most notorious 2-4 class and the students are already prepared with plans to get him sacked. But his righteous thoughts and strong will help him slowly change the students’ hearts one at a time.