Two delinquents on a mission to lose their virginity before they graduate, armed with nothing but stupidity, fists, and an unshakeable friendship. Eikichi Onizuka hasn't become the greatest teacher in Japan yet, he's just a bosozoku with the kind of charisma that makes you want to follow him into a fight you'll lose. The plot doesn't hold together and it doesn't need to, because watching these two idiots fumble through comedy beats and brutal gang violence is exactly the point. This is the origin story GTO fans never knew they needed, and it proves Onizuka's magnetism worked on everyone long before he walked into a classroom.

Two delinquent bikers decide that cleaning up their act might finally win them some female attention. Eikichi Onizuka and Ryuji Danma make up the Oni Baku, a notorious biker duo feared for their stubbornness and brutality in a fight, but their reputation as violent bosozoku makes them about as appealing to girls as a punch in the face. When they aren't out riding, they spend their school days chasing young women with no luck. So they resolve to change their ways, hoping to lose their virginity and grow up along the way. The problem is that turning over a new leaf proves much harder than it sounds. This five-episode action comedy OVA tells the story of a young Onizuka, long before he would become the greatest teacher in Japan.