Mitsuki, a shy glasses-wearing part-timer, despised her perverted manager. One day, a notice appeared in the locker room: "No underwear allowed!" Mitsuki reluctantly followed the rule, leading her down a dark path. No panties, no bra, upside-down shots, naked cunnilingus at the register, cumshot on glasses, and humiliation in her uniform, the J-cup part-timer succumbs to her perverted desires.