Are there any limits for power or bio? 
Because there is little information in OP are we allowed to create supernatural monsters and organizations for our backstory? 
Are we all located in the same city? If so, what's its name? 
Do Chasers keep in touch with each other in some manner? Is there some organization that handles Chaser affairs on the world level? (like Magic Association in Nasuverse, for example)
Is Crimson Sky filled just with roaming monsters, or is there some social order there?