Saori, a beach volleyball player struggling with social anxiety, seeks help from her teacher, who implements a provocative "embarrassment training" regimen. When Saori's sister, Sawa, discovers their secret, she demands the same treatment, leading to a competitive and erotic rivalry between the two sisters for their teacher's attention.
The tennis club holds a secret tradition where the top three ranking male members are rewarded with sexual services from girls of their choice. While Hogura-senpai and Asahina indulge in their desires with their partners, Kawakita is surprised to be selected by the reserved Momoka Nakayama. As the three couples engage in simultaneous intimate acts, Momoka reveals a hidden bold side and confesses her love for Kawakita during their first time together.
Believing her Photography Club senior, Futami, is transferring schools, Ubukata agrees to an erotic photoshoot at her home to express her hidden feelings before he leaves. The session escalates into a passionate sexual encounter where she finally confesses her love, only to later discover that Futami was simply moving into a new house rather than leaving the school.
To meet the registration deadline for the billiards club, Kana and Kojima persuade Yuuichi to join by agreeing to his lewd demands. This leads to an intense group encounter where Satsuki also reveals her hidden feelings for Yuuichi, offering him her virginity. Although the club is successfully formed, the members spend more time exploring each other's bodies than practicing their game.
Driven by jealousy after seeing the Kiryuu sisters interacting with other boys, Sensei confronts Saori and Sawa with intense encounters at school. However, upon returning home, he discovers the sisters have dressed up in provocative costumes to surprise him. The girls reveal that their conversations with the boys were actually research to find ways to make Sensei happier, leading to a passionate reconciliation and a mutual confession of love.
After the drama club's "charm performance," President Azumi and Mia are cast as "meek and pure maidens" in a school festival play. Feeling far too lewd for the roles, they embark on "special training" to regain their purity by roleplaying as slaves to a master, only for the exercise to fuel their sexual desires even further. Despite a misunderstanding regarding the script's terminology, the girls embrace their true natures and successfully bring the production to the stage.