Thirty-year-old Koume Shingyouji leaves her job at a major building firm to join family-run Marufuku Builders. There she teams up with Gennosuke, the Fukuyama family's eldest son, and starts working on renovations.
Koume shares her heartbreak story of being two-timed by her junior colleague and forced to resign, while Gennosuke comes out about a pathetic episode of his wife and his own brother.