Azumi, an honor student with idol-level beauty, is admired by her classmates. Minoru, who secretly films her and uses her image for masturbation, suddenly finds himself swapping bodies with her one day. Exploring her body, he pleasures himself with an extremely thick vibrator. During her first sexual encounter with a teacher, she faints from the shock of feeling a penis. Later, she gets involved in a threesome with a delinquent student, overwhelmed by the intense pleasure of experiencing orgasm in a woman's body, culminating in complete, mind-blowing climax.