Pop idol Rina is renowned for her amazing stage shows and musical talent, which gets her noticed by a new production company, Angel Productions. At one of her concerts, she learns that her father has suffered a medical emergency, and has been hospitalized. The manager of Angel Productions approaches her about switching to their company, and after learning her father owes the company a substantial amount of money and that the company is apparently part of a mob-related conglomerate, she agrees to sign on with them.

It turns out that AngelPro also works in the flesh peddling business, and under the guise of giving her a "new image", they begin to train Rina through public humiliation scenarios and outfits. Among these humiliations she is taken to a sex shop pretending to be a porn actress and masturbates in a porn cinema. Once her training has culminated, she's auctioned off at a BDSM auction as a sex slave for 580 million yen (roughly $5.9 million USD). Six months later she returns to her career as a singer. The manager and his assistant/slave are backstage, discussing how Rina turned out to be a good buy. In the backstage it is revealed her father had already died during her training.

At the end of her performance, Rina strips and begins masturbating with her microphone before finally losing her mind. The representatives from AngelPro walk off, and Rina's manager collapses to the floor in disbelief. The final shot shows the all-male audience rushing the stage and crowding around her as she smiles vacantly, with a tear streaming down her cheek.