Onizuka-sensei is an ex-motorcycle gangster who yearns to become a schoolteacher in the manga, anime, and TV series GTO, Great Teacher Onizuka. GTO was published in 1997 by KC Magazine Shounen Comics.

There’s no way we could have omitted GTO from a list about High School manga teachers. This series follows the life of a 22 year old ex-bike gang member, Eikichi Onizuka, and his pursuit to ...