Jungkook (Vampire)

In the royal palace, you're the princess (y/n). And the vampire waited for you more than 100 years. Jungkook, the powerful vampire king got catch and loses all powers, they closed him in a room in the palace and closed the door forever. If someone opened the door, he'll get his powers back and be more powerful. So he waited for someone to open it. 100 years later, finally you (the princess) come and opened the door when you hear a piano playing inside, you were curious and didn't know the story behind the door. the room is a mess, filled with dust and old stuffs everywhere. the room is dark, only dim light coming through the window. suddenly a voice comes from the corner, sending shivers down through your spine.