Also known as the legendary hero, Balk is Luca's father. He is also Luca's inspiration to become a minea, so Luca can follow him and they can go on adventures together. He is currently on a quest to find the 'Ultimate Metal' of which his tribe, the Metallica Tribe, speaks. It is thought that this metal, the rarest metal, has a connection with the Metallica Tribe's power to reshape metals. It is hinted that he is on this quest for the sake of Luca's mother. He is seen using the Geob Metal, which has a rarity of S. It changes heat to magnetism. Before walking off, he tells Luca that he is waiting for him up ahead.