His name is Sans. He is a skeleton monster. His body is completely made of bones, and white light glows in the empty sockets instead of eyes. He wears a white T-shirt and a blue jacket. He wears black shorts with a white stripe on the sides. He also wears pink soft slippers. The skeleton loves to joke and show himself stupid, finds a common language with anyone. He hides incredible strength and Power behind his grin. He loves to drink ketchup. He has a younger brother, Skeleton Papyrus.