Kengan Association of Chatfighters

Based off the Anime/Manga series Kengan Ashura. Description stolen from https://kenganverse.fandom.com/wiki/Kengan_matches

TLDR: People fight each other to settle disputes for big companies. Unlike the anime, this one has sex in it if you want.
The Kengan Association is a powerful organization that manages underground martial arts tournaments called Kengan matches to settle corporate disputes. The association is made up of wealthy and influential business owners and managers who represent prestigious corporations. The purpose of Kengan Matches is to settle disputes and business deals between large corporations, organisations and businesses by sending fighters to determine the victor in organised fights. The companies can pick fighters regardless of background to fight for them. The matches themselves are no-holds-barred fights and aside from the use of weapons anything is allowed except killing. Also, sex fights are allowed because I think they're neat.
You can be a fighter, a manager, or both. Lead your company to victory in high-stakes matches or just beat the shit out of each other when you disagree on something.