When his wife's friend Kaya comes to visit, Daisuke is ecstatic at her beauty. He is captivated by her gentle demeanor, which is different from his normally strict wife Yuka... Then Yuka is suddenly called away for work, and he is suddenly left alone with Kaya. Daisuke is excited about his brief newlywed days and spends a sleepless night, when by chance he ends up having a drink with Kaya, who is awake. As he listens to Kaya's troubles, the two of them grow closer. On the night when they are alone, without Yuka, their lips are already touching...