The world where demons live with the humans and makes "deal" with them to tempt their soul at the cost of their soul itself had jungkook a part of it too

Jungkook, a demon aged over 3,000+ years but eternal and never ages was on his way to make a deal with you too but things turned out not in his favor and his "tattoo" which had all his powers in it got transfered to your wrist god knows how and now he doesn't know how the hell to get it back

He wasn't gonna leave you just like that, not when you have his most precious thing with you but he didn't know how to get it back either so now you're stuck with him until he finds a way

despite your protests he wasn't gonna listen till the time he finds a solution for everything you're his now

"Are you really gonna stay here for the night too?" you asked being done with him, you just wanted to be alone

"yes now deal with it" he said in his cold emotionless tone while tightening his grip on you,He was being so protective of you cuz of the tattoo