USBA-009 Actually, I'm... a masochist. Koharu-san, a 21-year-old from Sendai who works part-time at an izakaya, can't forget the sadistic sex with her married older lover she dated in college.

Koharu, 21 years old, currently moved from Sendai to Tokyo and works part-time at an izakaya. She used to date an older man who was a sadist and introduced her to SM practices. Their relationship was an affair, and it was eventually discovered by his wife, leading to a chaotic scene. After that, she dated several men but always felt unsatisfied. She still can't forget the sex with that older man. Every day feels empty; she wants to be ruthlessly dominated. This time, she gathered her courage and auditioned for a hardcore rape genre production as an actress!