DVEH-035 A stimulant that makes nipples sensitive when being cold to others was administered to a tuna delivery girl, Nagaaki Yukine, who was developed to be extremely wet

Delivery helper girl - Yukine - has a flawless appearance, but she is rude and cold-blooded. The man decides to take revenge on such a Yukine and calls her out again. The man successfully administers the aphrodisiac 'Totsuki-Oh,' which only makes nipples sensitive, without Yukine noticing. With her nipples overly sensitized by the aphrodisiac's effects, Yukine is manipulated into multiple orgasms and faints, eventually becoming addicted to intense sex with the man to the point of requesting him again.