SPOILERS
is the protagonist gonna slowly turn into one of those demons, it would explain where the humans went and why demons dont leave behind bodies, and maybe byte becomes corrupted and byte that took control of the host and became corrupted, the eldritch look of the creatures could be some form of camouflage made using ai generation kinda like how ai art is sometimes indecipherable just turned up to ten, also is Loken neurodivergent he is giving the vibe of of an autistic person in a society that doesn't have the words or understanding of autism(i am also autistic)