After a fight with his wife, Takano Seiichi moves back to his parents’ old house only to discover that another person is already living in the house, Amemiya Hotaru, a junior at his company. As opposed to her very professional side shown at work, Amemiya‘s real personality is revealed at home, per example drinking beer on the porch after a hard day of work. She also goes around the house wearing teared up jerseys and dirty t-shirts. When a designer who just came back from London joins her team, Teshima Makoto, she suddenly falls in love with him after being kissed by him one day, out of the blue. However, because she hasn’t been in love for so long, she doesn’t know how to express her feelings. Her manager, Takano, decides to help her be more confident about her love while trying to save his marriage.