Kanna is a dispatched housekeeper. Her assignment this time is to a father-son household living in a suspicious mansion. Upon arrival, she is forced to change into a maid uniform. Both the son and the master seem oddly off. The absence of a mother also seems to have some reason behind it, though they won't clearly state the circumstances. As she begins her work while feeling suspicious, she is unreasonably scolded: “Why don't you call me ‘Master’? Follow this household's customs!”