Towns-should be filled with civilians that will roam around and do there daily buisness,there will always be up to 3 demon slayers patrolling the area.so if 2 civilians are killed the demon slayers will instantly head over to the murder sight and hunt down the demon who killed the civilians,(player demon slayers can get this as a mission by their crows)
Human Consumption-When a demon eats a human they gain exp and there hunger bar is filled more increasing there strength and power,there also will be rare types of humans with Marechi Blood that intoxicate demons but if eaten the demon gets even more power and exp,marechi blooded humans are identified by a slightly green aura around them
Demon Territory-Territories are areas like villiages and towns that are able to be claimed,if a demon gets 10-20 civilian eats and is there for 2-4 minutes the area becomes theres which boosts exp there,if another demon enters the area and your either killed or defeated you lose the territory.(doesn’t work in a private server if your by yourself)
Storage-Some blood demon arts could have passives to store corpses in there like Swamp or Nakime or Daki or Gyokko.so they can eat the food later or smth idk