GTO: Great Teacher Onizuka volume 1

Meet Eikichi Onizuka, a 22-year-old virgin and ex-biker. He's crude, foul-mouthed, and has a split-second temper. His goal: to be the Greatest High School Teacher in the world! Onizuka may think he's the toughest guy on campus, but when he meets his class full of bullies, blackmailers and scheming sadists, he'll have to prove it.