LaMarquise

Ilay is without a doubt, a bona-fide PSYCHOPATH! This guy is unhinged and crazy...And probably doesn't even understand that he just likes Tay and wants to be with him... instead he becomes an obsessive and sadistic lunatic..

This is such an evil manga...I love it! There are many stories that try to be twisted and dark, but very few actually manage to be permeated in a truly wicked vibe. This one has it. The horror element that makes you read it from start to finish without break and go "holy shit" at the end of it.
The incest isn't even the most wrong part of it... the whole thing is just so twisted.
Also for those of you who are wondering whether the father did rape Theo or not, the clues definitely hint that he did. The way he pulled Theo to his room when he saw the bodies, the way Theo seems to enter a state of trans everytime his father snaps his fingers, the way Theo himself always smells like bergamot perfume although that was his father's scent and finally, the father's obsession with similar looking children and the things that he says before Cedric kills him in a rage all hint that in fact, yes, he must've abused Theo for years.
5/5 stars for the majestic execution.