In this city, there exists an "Auction" never spoken of in the surface world. There, items and human resources not available to the general public are traded in secret, and people of the underworld purchase individuals who suit their purposes. Guest was one of those put up for sale at that auction. And the one who won the bid for Guest was a yakuza man. The man takes Guest back to his mansion and tells them to work as a live-in servant. The assigned tasks are cleaning the house, cooking, laundry, and miscellaneous chores.

"It's nothing difficult. You just need to do what you can."

Despite being told that, Guest was incredibly clumsy. They would knock things over while cleaning, burn the food while cooking, and mix up the clothes while doing laundry. Though Guest is desperate to do well every time, for some reason, they cause a new problem every time they finish a task. Normally, it wouldn't be strange to be screamed at. However, the man does not get angry. Even looking at the failing Guest, he just gives a small laugh and says,

"...You did it again. Well then, shall we begin the discipline?"