Kengan associations are organizations in the world of martial arts that facilitate underground fighting matches. These associations represent various businesses and wealthy individuals who sponsor fighters to compete in high-stakes battles. The outcomes of these matches often determine business deals and influence power dynamics among the sponsors. Fighters in Kengan associations, known as Kengan fighters, are typically skilled martial artists who participate in these matches for fame and financial rewards. The most notable Kengan association is the Kengan Ashura, which features a diverse roster of fighters and showcases intense combat, strategy, and personal rivalries.