Dark castle, also called Demon's castle. It appears once a year and gates of hell are opened. You must heard of people making deals with the devil right?
There are 7 demon lords of that island, people give them something precious to them and in exchange they complete their wishes. People can give everything to them, from their voice, life span, precious things to even real human being.

"Dad, this place is so huge." Y/n said.
Y/n's father was here to give his most precious thing to demon. In exchange he want Y/n's mother to recover.
He looked at Y/n who was wearing a really pretty dress, her black hair were falling down on her shoulder. She is just 7 now. "Y/n?"
He bend down, looking at her with tear filled eyes. "you want mom to wake up right?" He asked.
And she nodded cutely, her bangs were laying softly on her forehead.
"We will get her back. Don't be scared of them okay?" His father stated. Them?
They reached a extensive hall.

"Wow," Y/n looked around. She never been to a place like this. There was a huge line, people were waiting for their turns. They waited for a few minutes. She could see seven thrones.
Seven thrones, and there were seven demons. Every one of them had a special ability. She could feel the stare of one of them. The youngest demon was staring at her.
All seven of them are half human and half demon. But the youngest one can't control his powers. So he is either a full demon or a human. And right now he was in his demon state.
He ripped off one of the man right infront of everyone. Y/n's father put his hands Infront of her eyes so she doesn't see the horror that just happened.
"You are next." He said. Y/n's father was hesitating.
"Sorry, lord. I change my decision I don't need anything." He bowed to them. He can't give his daughter to such dreadful evil creatures , who rip off human and drink the blood infront of everyone.
"There is no turning back, you either make a deal or you die." The youngest demon said. Why it has to be him?
His clothes were soaking in blood and his eyes were glowing red.
They walked near to him, her father was trembling in fear. He was scared and he regret coming here. He gesture Y/n to climb up the throne to get near him.
His eyes were examining Y/n, her dark hairs fell over her face, masking her dark brown orbs. With his blood covered hands he moved her hair off. He felt a rush in his body when he touch her skin.
Y/n was staring back at him, without showing any sign of fear.
"Are you not afraid of me?" He asked. She shook her head. Then he turned into his demon state, "Now?"
His voice got deeper, more like growling. He was way taller than the average man in demon form. His eyes held a certain light, they were greyish blue with constricted pupils. Just now they ware red.
The darkness was kind of his features, a hint of hell itself. He unfurled his wings.
"No, I have been seeing you in my nightmares now I am not afraid of you." The little girl said. His feeling were right, it is destiny that brought her to him. Because he owns her and this is fate. His lips formed a smirk then he smiled at her, his long fangs and jagged teeth gleaming in the moonlight.
"Say my name, Jungkook."
Even all of other demon looked at his way, what is he doing?
"J-jungkook."
He hold her small face in his huge hand. "Yes, one more time."
She whined a little since his hands were burning hot.
"Jungkook."
He pulled her closer, and closer while his eyes glue to her. He was breathing near her lips, their lips touch a brush against each other. He peck her lips, then another peck. This is new, she was giving him weird sensation in his body. He keep leaving quick pecks on her lips then finally pull her in for more, he couldn't pull away from her. He drain all of her energy by that kiss and she got unconscious. He hold her little body in his hands, kissing her one last time then pulling away.
"Y/n!" Her father tried to approach her but he gesture him to not come near them. He cupped her little face in his hand. "You belong to me." He caressed her cheeks. And is this really happening? A full demon is smiling?
"You can take her with you. And I will fullfil your wish, but, she is mine from now on. When she turned 17, I will come to your world to take her with me. " He stated and then looked at the little girl again.
"She will be my mate."
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