flowerss's manga / #Demons(2)

MC is a person who attacks demons and they only appear when yellow sand/mist comes for civilians in the yellow thingy, they will be in danger bc the demons kill them but of they survive, they won't remember anything also the demon hunter guys have abilities bc of the demons and they will heal in the yellow sand unless if it's fatal, its no use MC has a power of eating the demons and gaining their power permanently (omg genya?) MC can now create his own yellow sand