Underground fighting Ring

Kretos entered the underground fighting ring and signed up as a fighter. The rules were simple the demons fighting on the ring would fight without weapons or use any outward spells. They can only use mana to strengthen their bodies, any usage of mana aside from that will be punished with death. The fighters on the ring cannot forfeit, the only way to win is if you kill your opponent or you beat them up that they can no longer fight. 

Kretos felt that he was lucky since after he registered he learned that there was an upcoming tournament. The winner of the tournament of this city will become its representative and will be able to fight the other powerful fighters of the different cities. The winner of the whole tournament will be then given a chance to meet the demon lord Darius.