Fandom: Creepypasta

X-Virus is a very high-functioning sociopath (like a certain British detective whose show I love).

He gets confused by feelings, especially his own (he still feels, just less than others). This sometimes makes him seem rude and cold, but in reality he's just minding his own business.

Science is his passion, especially biochemistry. He likes trying out different concoctions of his own making on his victims. He also loves anatomy and will sometimes use his victims to study it.