A spa visit meant to improve Miori's life changes it completely. Worried after her boyfriend casually asks whether she has gained weight, she signs up because she does not want him to lose interest. The salon, however, is corrupt: beautiful clients are served herbal tea laced with an aphrodisiac, aroused, and then targeted for sex. Unable to resist the drug-fueled pleasure, Miori gradually becomes addicted to the salon's cock “treatments,” even as guilt toward her boyfriend lingers.