I think this is a neat character, with an interesting background story, but the writing needs some polishing. I also think some things need to be elaborated on, while others don't require as much detail as you have. For example, why did the guy who trained the npc blackmail someone into taking him as an apprentice. What did he gain from that? I totally missed that. Tweak it a little and you'll be on the right track. :) Go to Comment
Culture: Drumming circles daily around an arena for their bravest brutes to slaughter their accepted foe, the zombie. Feasts of overcooked zombie flesh (to kill all of the zombie virus present). Wooden fortress that make this tribe in the far future look several millennium behind in technology. Instead of becoming a troublesome and unnatural foe that they seek to cure, this tribe has accepted that Zombies will continue to roam their land and, if the undead were to perish (be cured), this tribe would suffer as well.