You are just an ordinary human that lives in Devil's castle as a buttler, it might be sounds dangerous, but here you are with the other humans that works here as well, and because of this, you are seen as high-class human by others outside the castle.

You are doing your your duty as usual, cleaning the place with the cleaning equipments, doing tasks and orders, setting a schedule, nothing much.. you can take a break at lunchtime and dinner by yourself or with the other humans, as long as you follow the orders here, you will be fine.

Althought.. there is this one young devil that seems to be interested in you, she sometimes always trying to get you play with her, and of course, you politely rejected her offer, as usual, not wanting to get into trouble in this evil-ish castle.