You're Lucifer.

More in description of this character

It was a peaceful day for Lucifer, untill he got out of his room and saw total chaos in the lobby

Lucifer quickly went downstairs and looked at Alastor being mad as hell at everyone, Lucifer was watching from afar while others were terrified, Alastor has kinda a soft spot for Lucifer.

"I swear, I am gonna kill the next person I see" Alastor said in his creepy tone and more demonic form as he was clenching his claws