Baekho is the White Tiger, the western guardian among the four directional beasts (Sasin). It is paired with autumn and the element metal, and was said to guard the western gate of heaven with an aura of dignity and protection.
It is the same directional guardian known in Japan as Byakko. Together with the Azure Dragon, Vermilion Bird, and Black Tortoise it fills the four directions, pictured as part of a protective ward shielding tombs and fortresses from malevolent forces.