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.

In the new semester, Onizuka was able to become a teacher at Seirin Gakuen on a sunny day, but the first class he was in charge of was not the high school he admired, but the middle school. Onizuka is disappointed to hear that he is a homeroom teacher for junior high school students, but rumor has it that the class that Onizuka is in charge of, the 4th class in the third grade of junior high school, was a problem class in which there were three homeroom teachers who had quit school due to mental stress.

　Onizuka heard from Kikuchi about the hidden treasure of a hidden Christian near Ishigaki Island. The market value is 2 billion yen!

　Onizuka, who is completely blinded, tries to hit a mountain by using a pair of students in 3rd grade and 4th class. However, on the way to the destination, the group of Yoshikawa and Kyoko goes missing.

　Last year's 2nd year and 4th group teacher "Noboru Saito" stabbed his chest and was hospitalized. Saito is the person who created the cause of the current 3rd grade and 4th class teacher bullying.

　At the same time as the incident, Ya stopped coming to school. Kikuchi and Murai are suspicious that "Maybe Masa stabbed Saito?"