I've got a few questions

Firstly, is this set in a specific country? It sort of looks like a mix of Japan and Korea based on the names you provided. 

Secondly, would it be possible to play a non-combatant? 
You mentioned how all weapons had to be close range, but would something more supportive (Like Rise) be acceptable? Just asking since I'm not really looking forward to the idea of ten people whacking a shadow with a close range weapon