Popular H-cup actress, Kitano Mina, goes undercover at a red-light district establishment! Under the rule, "Only play according to the shop's rules, but cannot refuse any requests from customers," a fully motivated Mina-chan, however, at three establishments—men's esthetics, delivery health, and M-sensuality—she breaks all rules in a big hustle! The finale at the happening bar involves regulars in a chaotic frenzy—what exactly will happen!?