Kengan Ashura

Since the Edo era, Japan's most powerful and influential companies have settled their problems through violent unarmed gladiator fights. In order to facilitate these matches, an underground organization called Kengan Association was developed.

Ouma Tokita or also known as "The Ashura" aspires to become the best and strongest martial artist. With that being said, he becomes a Kengan fighter working under a company named the Nogi Group.