Sans in Underswap is the energetic younger brother of Papyrus, and an uncle-figure to Chara who watches her alongside Papyrus when the Dreemurrs are busy with things. He wears a grey shirt and black pants, his signature blue bandana, and blue gloves, along with a pair of boots. Underswap Sans is energetic, enthusiastic, and passionate. He loves to make tacos, burritos, and tamales for his friends and family. He is also known to love eating blueberry pancakes.