A female manager, Hinano Iori, whose nipples are abnormally sensitive, is forced to undergo nipple orgasms by a perverted consultant. (MIDV-355)

Hinano's hypersensitive nipples are a psychological issue. During track and field training, after confessing to the captain, she crossed a line with the question, "How about we try...?" Threatened by a perverted advisor who was spying on her, she was subjected to meticulous nipple training. This included using toys to intensely stimulate her nipples, training her to lose control of her bladder, performing oral sex with a rotating device attached to her nipples, and inducing her to experience ecstasy and reverse nighttime intercourse. Her pink nipples were bounced, plucked, and pulled, causing her to collapse under torture and reach orgasm with her hardened nipples.