"Eri", a female office worker at a certain company, is actually an M fetish girl at a high-class nightclub, enticing men with pleasure every night. Not content with that alone, she also keeps her boss, the section chief, as a pet and secretly enjoys lewd play in the office during the day. One day, a colleague found an escort who looked exactly like 'Eri' on an adult website. He then witnessed 'Eri' and the boss having sex in the office. The man visited the M erotic club where 'Eri' works as a client, and was fucked to his core by the techniques of his colleague 'Eri'!
