The Strongest Diabolical Denizen - By Neshowbdo DiaZen

What is it.. that.you are seeing? '

A distorted faint voice that constantly haunts Aki became a companion.Aki had no idea why.

Train station,his mother's dead body and a white transparent being in his nightmare..

As soon the sine sound starts,it makes Aki see something that he doesn't recognise.This Sine wave is something else. A warning? Or a reminder?

Reiji,a non-human being falls for him.After these two met,the hidden world falls into mess.The betrayer who can dwell in this two different worlds seamlessly and rule over, a threat to the non-humans,arises.