Sansfield was created when Garfield shook hands with Fanon!Sans. Soon, every Garfield character had merged with an UNDERTALE character, and the world was REBOOTed. Sansfield used to live with the Dreembuckle family, and he lived with Odierus, Jonriel, and Chara. After Chara's passing at age 17, and after the family broke apart, Sansfield moved to Tundraville with Odierus. Sansfield is also EXTREMELY powerful! It takes a lot to even make a dent on Sansfield.