Tsuyoshi is going to live with his relatives when he goes to college. He is not keen on living in someone else's house, but the moment he sees Hitomi, the beautiful wife of his host family, all of that feeling is blown away. He falls in love with Hitomi at first sight, and spends his days thinking about her and indulging in lewd fantasies... but one day, Hitomi sees him masturbating. And Hitomi sees him...