This is not really to my liking but for some reason I wanna see what happens in the end. Rin is obsessed with Agnes while Agnes looks like he has feelings for Emi. Agnes looks like the main guy but it's actually his best friend Mi-kun who is the main guy. I believe Mi-kun is the bad guy. A real wanker to dark shit. They all think the killer is Reiji from the previous Kodoku. A ritual to kill people for one wish. Rei is Rin's faternal twin, he or rather she rapes Vee. Poor Vee.
Doku Mushi - The Ruins Hotel