Asura is one of [[::Category:Eight Guardian Generals|the Eight Guardian Generals]] serving the Emperor, and the incarnation of Merak.
He was part of the royal family of Zipangu, but was so focused on martial arts training that he abandoned his name and status. He trained in the Final Secret art, and realized that there was a darkness even darker than itself and attained the Mahakala stage.
Mahakala came to the Central District in search of stronger opponents where he defeated everyone in the Royal Martial Arts Tournament. The Emperor was fascinated by his skills and named him as one of [[::Category:Eight Guardian Generals|the Eight Guardian Generals]], giving him the name of Asura.