Eikichi Onizuka begins his career as a teacher-in-training expecting that he will get a class of attractive, nubile high school girls. When he is assigned the problem "Class O", a group of delinquents and blackmailers, only his tough love is able to win them over.

On the day of the teacher employment exam, Onizuka, who failed to take the exam due to a misunderstanding, feels like a dong. At that time, my best friend "Danmari Ryuji" will be interviewed by the prestigious "Seiringakuen", a private school where you can become a teacher even if you fail the teacher employment exam. Is recommended.

　Kunio Murai, a student in the 3rd grade and 4th class, lives with his mother. Moreover, her mother "Juria" is a beautiful woman, and she is still in her twenties.

　One day, when Murai heard from the girls in the class that "I saw Onizuka and Murai's mother together," Murai became anxious about Juria's behavior when she went out in a fashion that she wouldn't normally do, and secretly. Follow me.

　A beautiful woman named "Urumi Kanzaki" appeared in front of Onizuka who lamented that she wanted a lover. The two stop by a laundromat to dry their soaked clothes, but Onizuka gets caught up in her tricks and is suspected of being molested.

　The next day, Reimi appears again in front of Onizuka, who teaches with a moody face. Reimi hasn't attended school yet, but she is a student of 3rd grade and 4th class, and has been a genius child since the beginning of the school, which boasts an IQ of 200 or more.

　Fujiyoshi, who has lost an important collection of money somewhere, is blamed by everyone in the class. Onizuka, who couldn't see it, said that he would work on the money, but he was impatient when he heard that the amount was 1.12 million yen. Apparently, the 1.12 million yen that Onizuka spent last night seems to be the money.

　Onizuka does everything in his power to get rid of the money he has spent, but it's totally useless. At that time, Fujiyoshi disappears.