Ranked #1 for 24 hours, weekly, and monthly on the e-book sales site! From popular author Michiking's debut novel 'Sexual Activity Week,' the luxurious cast finally brings to life the 'Chastity Club' filled with cute and erotic heroines!! The Chastity Club is an after-school activity aimed at suppressing sexual desire. Mariko, with her voluptuous body, was supposed to get used to ≪sexual acts≫, but... the female students fall for penises, and every day after school, they indulge in sex until their desires subside through sex education practice! Sex is the ultimate chastity.
