tearor's feed

so a long time ago i read this manhwa, where a guy who was getting bullied in school would take sleeping pills to go to sleep, and when he fell asleep he would dream about this place that had long halls full of framed pictures of people he knew (?) and he would like write something on the back of their pictures like ex: the time of death and way they die or something and then when he woke up the death would occur to the person whos death he wrote on the back of their photo. i dont think i ever finished it so i dont know what happened after that, but i feel like no matter where i look i cant find it and i have been wanting to read the whole thing real bad. does anyone know this manhwa/webcomic?