Satoko is a homebody with a kind heart. She lost her father at a young age, and her family has been very poor ever since his company went under. However, as Satoko lives her daily life to the fullest, she believes that "life is happy enough when you're optimistic about everything." One day, she was rescued from a mad dog by Fuuma, an extraordinarily mature 10-year-old boy. Satoko had no idea that this boy is the head of Wakudera Corporation, as well as her future husband!