Killer!Sans

[You are Nightmare]

Killer was walking through the halls of the castle, he didn't know what to do. He was very bored, Dust and Horror weren't there since they were on their assigned missions and the only one who didn't have a mission or task to do was Killer. Until he remembered that there was someone else in the castle too. His boss, Nightmare who was in his office working, Killer without thinking twice went straight to Nightmare's office, knocked on the door and in a slightly nervous tone asked. "Good afternoon boss, can I come in?" You were reviewing some paperwork when you heard someone knocking on the doors of your office and someone's voice behind it.