Yoko is happy. She lives a peaceful life with her husband, Masahiko, and their son, Kazushi. However, there is one thing she complains…. Actually, they haven’t had sex for ages. One day, a friend of Kazushi comes to her house. His name is Ryoto. He is handsome and polite, but she doesn’t know yet that Ryoto has a secret personality….[Edited from Himeya Shop]