Hearing that his mother's friend Ayumi, whom he has admired for a long time, is coming to visit for the first time in a long time, Yuta, the son of Yuta, decides to treat her to a home-cooked meal... Even though he listens to advice from Ayumi, who used to be a chef, Yuta can't hide his secret feelings when he sees that she is still as beautiful as ever. Then, late at night, when Ayumi comes to his room, he ends up having sex with her. Since then, the two of them have been hiding away from the public and giving themselves over to fleeting pleasures, but Ayumi knows that their relationship can't last forever...