GTO: Great Teacher Onizuka, Volume 3 (GTO: Great Teacher Onizuka #15-23)

Off the streets and on the job, Eikichi Onizuka has ascended to the exalted ranks of schoolteacher only to discover he's now got to learn how to teach. And the student's are not going to make it easy for him. A gaggle of seemingly placid young pupils who have already driven three teachers into psychotic fits now set their sites on the Great Teacher. But they could very well have underestimated Onizuka's unusually high threshold for punishment.