Background

Mu was the child of a concubine. He took over the Throne of The Charon Kingdom after Kyo killed his half-brother, Lemu.^[1]

Mu was a violent King who possessed tremendous power. Later, he became obsessed with his power until a hero named Beamos sealed him and his Five Knights in the very dungeon he created.^[1]

He is currently binded on his tombstone and The Five Thorns became statues, protecting their King's tombstone by his side.^[1]