Descendants of Darkness/Nightmare Fuel


 * Hisoka tied with razor-sharp wire to an upright bed, while being forced to remember the night Muraki raped him.
 * Sangatanus feeling-up "Hijiri", then .  That entire plotline was massive Paranoia Fuel. Getting an organ transplant? Not usually A Fate Worse Than Death. Having said organ come from someone who made a Deal with the Devil, and now said devil has declared you fair game? Not good at all.
 * The St. Michael's School arc, which was so horribly full of HONF and squick that the author made the next arch as AN APOLOGY.
 * The reason Muraki obsessively stalks Tsuzuki?.
 * In the Kamakura arch, . His wife.
 * Hell, Muraki in general. Murderer, rapist, driving everyone around him insane, manipulative, Magnificent Bastard, a doctor (which, yes, should terrify you) and many who see him (he dresses in white, is pale, has pale eyes and hair) think of him as an angel.