Natsuko is going back to the advertising agency she worked for before taking maternity leave and is shocked to learn that she is not the creative director any more but instead, she is put in charge of the Sales Development. Unmotivated, Natsuko finds she has her work cut out for her, and she has trouble balancing her job responsibilities with her home life, so she hires Miyuki, a babysitter. Unfortunately, Miyuki’s presence eventually works to tear her marriage apart.