It's already been five years since my mother passed away and we became a single-parent household. Naoki has been living alone with his father, doing housework in between school and school. One day, when Naoki returns home, he finds a gorgeous home-cooked meal and a young woman... It was Mika, a friend of mine who I had heard about, who used to be my father's secretary. ``Dad, I've decided to remarry Mika-san.'' A young beauty suddenly became my stepmother. ...It was inevitable that Naoki would become conscious of Mika as a woman.