Asahi Motoi has loved tidying up since she was a child, and for her, a job as a "housekeeper" to keep things in order is her calling. She is now 25 years old and is interviewing for a job at a mansion. She goes to a mansion for an interview, but it turns out to be the home of a childhood friend, Nanaie Kataru, whom she had promised to marry when she was in elementary school, but had to leave when they were separated. Asahi's heart is filled with excitement at being reunited with the person she has been thinking of so long. However, it seems that he now has five lovers. Under one roof, a love survival battle over a long-time lover opens up.