After getting divorced, Honoka opened a home fitness gym to earn a living. Initially, many students attended and the gym was thriving, but due to the economic downturn, the number of students gradually decreased, leaving only three members now. With rumors spreading that two of the remaining members plan to quit, Honoka desperately tries various tactics to win back their loyalty. Revealing her naughty side, she even allows creampie lessons, becoming a kind yet passionate instructor who fulfills her students' desires and captivates everyone around her.