Before her wedding, Rika decides to visit a bust enhancement salon. At first, she feels at ease with the therapist who seems nice, but gradually his fingers start to stimulate the tips of her breasts. The therapist starts to relentlessly play with her nipples, while Rika is confused. Although she resists, her body becomes so sensitive that she develops a constitution that makes her orgasm from her nipples, and she starts to visit the salon many times without her husband's knowledge...