Konatsu, a member of the track and field team who is struggling, receives a massage treatment from a chiropractor to help her recover from exhaustion. However, the chiropractor who appears is an unscrupulous and virile chiropractor who targets the bodies of young women... The corrupt coach attacks her busty, sensitive body, which has been developed through despicable means by injecting aphrodisiacs. He uses sexual harassment treatments to increase sensitivity, making her nipples twitch and climax violently. He then shoves his virile penis into her big ass, which has been made slippery with aphrodisiac oil...