It's been five years since my mother passed away and we became a father-son family. Naoki has been doing housework in between schools and living with his father. One day, when Naoki returns home, he sees a luxurious homemade meal and a young woman. - I had heard the story, and it was Mika, a dating partner who used to be my father's secretary. "Dad, I've decided to remarry Mika-san."