Takamura is invited to a fitness club ran by the wife of her husband's manager. Bored at home, she doesn't see a reason to refuse. When she finally attends a fitness session, she can't help but notice that all of the instructors there are younger men with revealing uniforms. What is the reason for that?
Based on The H-Manga Hitozuma, Mitsu to Niku by Tsukino Jyogi