An underground tournament promoted by the Shidou family
where people can place bets on the internet.
- Before each match the ref draws a card that contains the forbidden technique of the fight.
- Thumbing, biting, etc, even a no hitting card can be drawn and this becomes the only rule of the match.
- When a fighter breaks the rules if it is done accidentally then their fight money will be forfeited. However if it is done on purpose they are put to death.