XXI was Los Angeles clandestine fight club, created by brothers Darin and Jack MacNamara, for the entertainment of the rich and powerful. At XXI, enslaved demons were forced to fight each other to the death with the promise of earning their freedom after twenty one victories. It remains unclear if the few who achieved 21 actually would be set free, or killed in private by the Mcnamara brothers. No mention is made of any previous demon actually winning 21 fights.
- "The Ring"