Abandoned in the snow as a child, Rean was found and adopted by Baron Teo Schwarzer and his family. Rean doesn't have any recollection of life before adoption. It's unknown whether he's originally a commoner or a noble, a fact that ostracizes the Schwarzer family from the noble society. Despite not being blood-related, the Schwarzer family has raised and loved him like a real son regardless of being ostracized by the other nobles.