Married for four years... Although he loves his wife Mona, Masaya is no longer aroused by her twisted sexual desires. Masaya's sexual desires are "cuckolding." Wanting to have Mona sleep with another man, Masaya secretly finds a popular beauty salon on an online cuckolding message board. The salon has a secret menu, where the salon will cuckold any woman who comes to the salon and record the act on camera. Masaya makes a reservation right away and recommends it to Mona, but at the time he doesn't even imagine that Mona will become addicted...