Scariest Manhwa/Manga you've ever read. Or just any that gave u the creeps (⌒▽⌒)

Zankyou, Rikudou (mainly the initial shock of the beginning), Shokuryou Jinrui (not as scary as ppl make it out to be), Juujika no Rokunin. None of these were really TERRIFYING, but they stick out in my mind. However, I have a few novels that have physically made me cringe and or feel sick