Mizuki Igarashi is the prom queen of her school and also the class president. The school she attends is a girls' school, where beautiful girls with attractive and approachable appearances dominate. This time, Mizuki-chan, a tidy and neat girl, seems to be getting close to her physical education teacher. A beautiful prom queen like her is charming her teacher with all sorts of seductive words that have caused him to fall for her and be unable to resist.