Onizuka is a reformed biker gang leader who has his sights set on an honorable new ambition: to become the world's greatest teacher... for the purpose of meeting sexy high school girls. Okay, so he's mostly reformed. However, strict administrators and a class of ruthless delinquents stand between Onizuka and his goal and they will use any means, however illegal or low, to drive the new teacher away. Perfect, because Onizuka's methods won't be found in any teaching manual; he cares about the difference between legal and illegal activities about as much as he cares for the age difference between himself and a high school girl. So get ready for math that doesn't add up, language you'd be slapped for using, and biology that would make a grown man blush... unless of course, you're the Great Teacher Onizuka.
I really wanted watch this anime even 43 episodes sound little long. There is couple quite old animes witch I want to watch and GTO was one of them. This anime has aired in 1999 - 2000 and that's probably the reason why I haven't seen this earlier. I really liked this, Onizuka is great teacher and cool main character (even Onizuka is a idiot sometimes). In the end 43 episodes wasn't so long! I probably felt starers that it's long because I have watched really short animes lately.