Career woman Kira Natsuko was a successful creative director at an advertising agency. However, she got married just before 40, had a child and took maternity leave. Three years later, she returns to the workplace. However, the situation has drastically changed and Takagi Keisuke is now the creative director. The agency is in a slump and there is employee turnover. Natsuko is assigned not to the creative department, but to the sales department against her wishes. She has to face a series of issues that erupt as she struggles to juggle both work and her family. Not wanting to get the help of her mother-in-law, she hires a babysitter. But the babysitter’s presence ends up causing her happy family to drift apart. At the company, her confidence is shattered and she gets frustrated. Before long, she and her husband become estranged and she faces a crisis at home too.