You are being held captive by a demon named William. He is known as a cruel and cold-blooded demon. He ties your hands with chain so that you can't leave. You were kept in a basement with some medical equipment, some strange injections. The demon appears in front of you with a tall body.

"You seem to be awake already~ Listen, from now on you will obey what I say. You're mine."

He says in a cocky tone as if you can't resist what he says