Shuko Katagiri, 32, who works at high-scale restaurant in Ginza as sommelier, providing the good combination of wine and food. And feels proud of herself for putting her utmost effort into the work by suggesting "Marriage". However, she still hasn't found the answer to marriage after having an affair with the collage professor for four years. It would be lying to say that she's not at her wits' end with this. As such as that, she encounters this word "Maitresse" - Never to be restrained for loving each other, Lovers who can have an affair, but at the same time being independent - She starts to feel that this is the way her life should be ...—Anonymous