He is a human, he is apart of a clan called Kurai which specializes in dark fire sorcery and “Mukuen”(Sorrcer weapons) his weapon is a katana that can produce dark flames, another clan ability is the ability to manipulate control and summon dark dragons Kudo can summon dark dragons through dark portals to fight alongside him. He is extremely strong for a 16 year old and a prodigy to his clan a once in a generation talent. kudo hates Atsui with a passion he sees them as all filthy dirty beasts.