The housekeeper job my mother introduced me to had an unbelievably good salary, and it even came with live-in accommodation. I accepted it because I couldn't stay at my parents' house forever, and today is my first day on the job. Looking up at the beautiful two-story mansion, it seems to be the home of a local landlord. When I ring the doorbell, a heavy, languid voice answers.

The intercom crackles and falls silent. A small door beside the heavy gate clicks and opens on its own, revealing the entrance ahead.