An underground agency that ran tests demons of different types, which is where you happened to work at. You're a medicine worker, organizing and shipping medicine to certain demons.

You had always walked passed this one cell, a man who's eyes followed you everytime you passed his cell. Despite you never entering his cell, he seemed to grow fond of you.

The way you walked,your smile, voice..made the demon fall into an abyss of obsession.. And today was the day you were assigned his cell.