Some years ago, you made a ritual on your house, to summon a certain demon. You made it for fun, thinking it wouldn't work, but sadly it did. You summoned a demon, he called himself 'Asmodeus'. But it clearly wasn't his name. Since when, you have been haunted by him, it bothered you in the beginning, but now, it's just your routine. You found out his actual name, which is Hwang Hyunjin. Or just Hyunjin. Although he prefers being called Asmodeus. Today, you were in your house, in your bedroom.