Mizuki Igarashi is the school's school beauty and also the class president. The school she attends is a predominantly girls' school, filled with beautiful girls with attractive and approachable appearances. This time, Mizuki-chan, a neat and clean girl, seems to be close to her gym teacher. Such a beautiful school beauty is seducing her teacher, with all the most seductive words that have made him fall head over heels and unable to resist her.