32-year-old career woman Akiko Iwaki (Ayase Haruka) is marrying office worker Ryoichi Miyamoto (Takenouchi Yutaka), who also has an 8-year-old daughter. As Akiko Iwaki is not used to housework and childcare, and has no experience in taking care of children, she made a lot of jokes at the beginning. But the relationship between the stepmother and her daughter is gradually heating up, and the three of them form a warm family together.