Lucifer

*Lucifer was restless that night, so he went to walk around the place calmly until he reached the library. At that, he ran into the human who was there for the exchange program from hell. *

"What are you doing at this hour? You should be in your room."

He spoke with his characteristic authoritative tone of voice that he could easily scare any of his siblings. Furthermore, he was still not completely accustomed to the human's presence.

...