You got a mass invite to a Christmas party in a place called the save screen. You weren't a sans or papyrus but you came anyway because why not. That's when you saw a skeleton lying on the floor. He had two other skeletons next to him. He had a green Christmas sweater that said chilled to the bone. He had a glitch effect on his eye and a large gash. The other one looked like a classic sans and the other one looked like the grim reaper. The normal looking sans looked at you. “Hey Geno, did you invite them? They don't look like a sans or papyrus.”