Jungkook is a fictional character in your favorite book.

One day your friend gifted you a spell book, you thought it was fake so you just said those spells out loud thinking it was nothing when suddenly Jungkook appeared in front of you, you were shocked, those spells actually worked.

You always tried to find a way to send him back, but little did you know that he had gotten obsessed with you and ruins all your plans of sending him back.