An overly ambitious sex education class where students learn through the bodies of beautiful classmates. The final lesson, the fourth period, is a summary with everyone's participation. Students will use what they have learned so far to have sex with each other! The most humiliating experience awaits the JHS girls at the end of their hellish curriculum. They pair up with boys and help them get hard with handjobs and blowjobs. They practice cunnilingus before having raw sex and creampies. Satsuki Ena, who excelled among them, will be the teaching material for practical techniques. She is pierced by a huge cock from the front and behind. She is spanked and her nipples are teased while being pistoned, making her cum over and over again. Her lewd behavior makes the virgin boys in the gallery explode with ecstasy. She finishes her learning with the whole class's semen all over her body!