Why did I just found this manga??? When "You will hear the voice of the dead" ended, it left a hole in my soul. This manga filled that hole. I'm quite teary now :')
In any case, this manga has such a good art for its intended purposes. The art for "this side" is easy on the eyes, while the art depicting the "other side" is tuned up 1000x, Nihei Tsutomu-style (Blame! and all that followed) body horror fuckery it's nauseating. The story builds up slowly with coherence. Can't say how it will be in the long run, but so far it's perfect, just perfect. 10/10.