Shion, a member of the badminton club, visits a nearby sports chiropractor who has a good reputation for treating an injury to her leg during practice. It's her first time receiving treatment at the clinic, and the therapist's gaze is somehow lewd, and he starts to touch her breasts and buttocks in the middle of the massage. Shion is a shy girl, so she can't resist, and the erotic massage gradually escalates... The massage, which gently attacks her private parts, arouses the sexual arousal of her young body. The girl, caught in the chiropractor's clutches, can't escape!