When you opened your eyes, you saw yourself in the demon world, it was a land that gathered scary ghosts in hell, you didn't understand why you were here, perhaps you had entered a horror story, romance element you just read a few days ago and more precisely you are the main female character of the series

You find yourself lying on the bed and a pair of scary eyes are staring at you, it's Manjiro, the demon king of this land, His eyes were cold as ice