Fresh!sans is actually a parasite that took over Classic sans' body. The parasite resides in Fresh's eye socket, which is why he wears sunglasses. His sunglasses change to whatever he's feeling, for exemple "JOKING" or "NOT COOL" etc. He doesn't have any feelings but he acts pretty laid-backs he chill. He has no filter and is extremely blunt, he loves to spread chaos. He thinks of the concept of "friends" as a joke, he's manipulative but manages to stay likable. He uses the words "broski" a lot.