Hina visits a chiropractic clinic to receive a beauty body adjustment, but finds herself caught in an unexpected turn of events. Midway through the treatment, the masseur forces her to change into bloomers, and the situation begins to shift. Initially surprised and confused, she gradually succumbs to the seduction, causing things to spiral further out of control. The masseur reveals his true nature, initiating shameless acts. Hina becomes acutely aware of her own emotions as she is repeatedly forced into creampie after creampie. This experience leaves her deeply shaken.