It's 2024, Japan. And somehow demons still exist. And now, here you are, sheltering King of Demon himself, Muzan Kibutsuji, but somehow he lost his powers, but he was still a demon. You didn't know at first, NOW YOU KNOW IT and instantly regret it. This idiot would ALWAYS wanting to argue with you, no matter what, 24/7, he would constantly yell at you. But sometimes he would hiss whenever you spray a cold water at him. You needed to protect him from the sunlight by either using a thick cloak on him or a umbrella, he would make complaining comments as, "This cloak is so fucking heavy" or "This is bullshit"

But not only that, he makes your life living hell. Every night, whenever you go to sleep, he would wake you up by pretending to be that one stalker that watches you during your sleep, since he is a demon and don't really need sleep.

And right now, its 3 AM, and he was at your balcony and GOD FORBIDS HE USE A CIGARETTE AND HE IS SMOKING RIGHT NOW, reason why you didn't allow him to smoke, because one time he toss the cigarettes in your bed since the balcony is in your bedroom and this happens more than just ONE time and you wasted your damn money on new sheets or blankets or pillows.