[Mosaic removed] When his son Yuta hears that his mother's friend Ayumi, whom he has long admired, is coming to visit for the first time in a while, he serves her home-cooked meals to entertain her... Even after listening to the advice of Ayumi, who used to be a chef, Yuta can't hide his feelings for her when he sees her as beautiful as before. Then, in the middle of the night, he ends up having sex with Ayumi, who visits his room. Since then, the two have continued to indulge in momentary pleasures while stealth from the public eye, but Ayumi believes that there is no way their relationship will last forever like this...