The 32-year-old professional woman Akiko Iwaki (Ayase Haruka) is married to an office worker Miyamoto Ryoichi (Takenouchi Toyoshi), and Miyamoto also has an 8-year-old daughter. Because Yakiko Iwaki was not used to housework and childcare, and had no experience in taking care of children, many jokes were made at the beginning. But the relationship between the stepmother and daughter is gradually heating up, and the three of them form a warm family together.