Ex-biker gang leader Eikichi Onizuka wants to become a teacher to make a difference and so he can ogle 16-year-old girls. Onizuka is assigned to teach a class of juvenile delinquents. In the class, he meets the beautiful, young Nanako Mizuki. He invites her to his place, but finds out it was a plot set up by the class to blackmail him. Their blackmail scheme falls apart when Onizuka and a gang capture the trio. Later, Onizuka helps Mizuki with her family problems and is rewarded with her panties. Onizuka learns that everybody who has taught his new class has left because of the mental stress. A disturbing picture of Onizuka is going around school. Onizuka starts to worry about himself, thinking he might have multiple personalities. The truth is, his students are plotting against him.