The wife of an insurance salesman, Kei (Mirai Haruhara), accidentally catches a glimpse of a client's perverted sex act at a business location. When caught, Kei is raped by the client. Her naked form is photographed, and Kei is declared to be trained as someone even lower than a slave. 'I'll educate you to become a fine slave.' 'A slave... I will never become such a thing.'
