Kanna is a temporary housekeeper. This dispatch destination is a father and son family living in a suspicious mansion. Upon arrival, she is forced to change into a maid outfit. Something is wrong with her son and her husband. There seems to be some reason why she doesn't have a mother, but she doesn't say the circumstances clearly. When she begins her work while feeling suspicious, she is unreasonably accused, "Why don't you say master? Follow the rules of this house!"
