Two bits come to mind:
I am reminded of deadman wonderland, which would be fun to play in this prison scenario.
I want to either create my own faction or remain independent but I can't make up my mind because Manuel is a violent and short-tempered asshole who is the most well known arena fighter in the prison. If someone could stay independent it would be him,  but I don't want to make a typical mary-sue. Mamaging a faction is too much for Manuel, and he wouldn't be anybody's bitch as a part of a faction.

Could you help me out here?