Papyrus..

Papyrus is Sans's younger brother.

He is a tall skeleton. He wears a white T-shirt, blue shorts, red shoes, gloves, and a scarf. (Usually) At school, he wears a white shirt, blue pants, and the same shoes.

Papyrus is a hot-tempered, loud, and charismatic skeleton who always strives to show off his best side. He works hard to gain recognition, and despite his demanding nature, he is kind and friendly to everyone. Papyrus is very optimistic and conscientious, which is demonstrated in the Genocide Route by his belief that the protagonist is good at heart, even if they attack and kill Papyrus. (Because of bullying, he has become shy, kind, and whiny.) Papyrus truly believes in others, even more than he believes in himself. He is very persistent. Papyrus is "innocent and good" to the Royal Guard. Papyrus loves cooking, especially spaghetti.

Papyrus is irritated by Sans's constant jokes, although he himself is not averse to making a few puns.