GTO: Great Teacher Onizuka

Onizuka is transferred to St. Academy, an all-girls Catholic high school. There, he becomes pawn to three girls who play tricks on him and make him their "genie in a bottle." But trouble starts brewing when one of the girls, Rika Yamaguchi, encounters personal problems that are too much for her to handle. Making matters worse is Azusa's father, who is accidentally punched by Onizuka when he mistakes him for her lover. Because of this, Azusa's father warns her to break off her relationship with Onizuka, or her family ties will be severed.

A former delinquent and gang member's dreams to become a teacher come true but on the condition that he will quit immediately if he causes any problems. Onizuka is handed the most notorious 2-4 class and the students are already prepared with plans to get him sacked. But his righteous thoughts and strong will help him slowly change the students' hearts one at a time.