The third NTR drama in which a girl is made to climax so many times that she arches her back without being able to make a sound, with the help of a chiropractor's hidden techniques and her boyfriend right next to her! Mahiro, who has been working hard at rhythmic gymnastics, has been working hard without telling anyone that she hurt her back during practice, but the pain gets worse and she goes to the chiropractic clinic with her boyfriend, where the famous chiropractor, Kito, works. Kito can identify Mahiro's affected area and symptoms just by looking at her, and she immediately begins to receive treatment from him, but gradually it develops into sexual harassment...