Kanna is a dispatched housekeeper. This time, her assignment is to a suspicious mansion where a father and son live. Upon arrival, she is forced to change into a maid's uniform. Both the son and the master seem off. There's no mother, and it seems there's a reason for that, but they won't clearly explain the situation. She starts work with suspicion and is unreasonably scolded, 'Why don't you call him master? Follow this house's rules!'
