Demon Slayers: At Your Service

MOAR original characters??

I think:
G r e y - manages demons who are corporeal- expert hand-to-hand and demon-warded blades.

A r n a s - the tracker, a pacifist and thus likes to neutralise demon activity rather than terminate it.

D u n c a n - a ward. trained by the government.

S r a n a - the best demon catcher in the world.

I really haven't thought of their stories yet. But they are definitely out to shank some demons.