You woke up to an empty bed after the night you lost your virginity to your boyfriend. Jungkook's side of the bed was empty. He left without even bothering to tell you. This sounds cliché and you didn't want to make a big deal out of it but you felt like shit. Last night was obviously special to you and you wanted to wake up next to him but you knew Jungkook isn't the type to do those things unless you tell him to. He's a little slow when you give him hints so he wouldn't understand what you're getting at unless you tell him directly. Jungkook still has a long way to go in understanding human emotions.

You were hoping Jungkook would stay. You wanted him to stay so bad. The bedroom door was open when you heard a sound coming from the hallway. That was probably just Cerberus. At least you have him around to keep you company. You stretched and got out of bed to make coffee and feed the dog but you didn't expect what greeted you outside. Jungkook was feeding Cerberus and was sat down on the floor in his favorite plain shirt and sweatpants combo, watching the dog eat.

"Don't you miss beheading people? I know you can relate to me the most here because I sometimes really want to burn people alive. It's just my nature, you know? But Y/N would get mad.." Jungkook was talking to his familiar and then sighed afterwards.

He lifted his head and noticed you standing by the bedroom door. "Hey, goodmorning." Jungkook gave you a small smile and your heart jumped for joy. "Cerberus was howling so much. I figured he was hungry so I just fed him before he wakes you up."

You chuckled, closing the distance between you and Jungkook, "Goodmorning."

"So it is true." Jungkook looked at your smiling face.

You furrowed your brows, confused. "What is?"

"Women on Earth are especially happy the next morning after they got sex." Jungkook said and that made you dig your fingers on his side, pinching him. "Ow, what the hell, woman!"

"Woman?" You cannot believe he just called you woman. "Woman?!!"

"Okay, okay, I take it back." He said, backing away as you lift your foot, about to kick his ass. "Maybe that wasn't true."

"It isn't!" You argued back at him and then walked past him to make coffee. Jungkook and his familiar followed after you to the kitchen. "Aren't you going back?"

"You want me to leave?" Jungkook asked, his elbow propped on the kitchen counter as he stood right next to you. "I thought you want me to stay. For cuddling purposes."

He smirked to himself, an extremely obnoxious habit of his. Maybe he inherited it from his father. You ignored him and put your attention on what you were doing instead. "You really want me to leave?"

Jungkook fell silent afterwards so you stole a glance at his face. "I don't want to." He added, "Who knows what might happen to you again. Now that my brother knows about you, I'm sure my father will soon know too."

You felt bad for scolding him when you saw the look on his face. That explains why he was stuck next to you the past few days after that incident. After five years of being with Jungkook, you've never seen him this concerned about anything or anyone.

"So what if your father knows?" You told Jungkook and he smiled at your cute display of bravery. "You told me he doesn't meddle with human lives unless they make a deal with him."

"He doesn't." Jungkook replied, staring at his hands that reminded him of his fate. He could feel his father's blue flames burning in him. "He hates humans more than I do. If he finds out about me being with you, I don't know what he'll do."

"Don't worry about it too much. I mean, he's not going to hurt me, right?" You said, trying to lighten up his mood. "What do you for breakfast? I'll cook anything you want."

He still wasn't convinced. You took the frying pan out and was about to turn on the stove when the door bell rang. Jungkook's eyes met yours and he grabbed your arm to stop you from going to the door. "Relax, will you? It's probably just the mail man or something. Stay here. I'll be right back."

Jungkook listened to you for once and waited in the living room but kept his eyes on you the whole time. You reached the door and opened it without asking who the person is on the other side of the door. You didn't believe that Jungkook's father would personally come to take you and give you the VIP treatment to Hell. Thinking about that made you smile to yourself, "Who is it?"

You were puzzled when you didn't see anyone outside. "Huh? No one's here."

"I'm here." A voice said and you were startled to see a small girl standing in front of you. She showed you a smile while you calm yourself down. "Hello. I want to talk to Azaz— I mean Jungkook. I know he's here."

"Y/N, who is it?" Jungkook asked from the living room.

"Oh, a cute little girl is looking for you." You replied, crouching down to the girl's level and returning her smile. She wore a kind of old robe that were a size too big for her but you disregarded it, thinking that she might be cosplaying or something similar to that.

Jungkook was behind you in an instant. He saw the girl you're talking to and easily recognized her. You were surprised when he grabbed you and made you stand behind him. "Why are you here?"

"That's rude, Jungkook. And mean! You don't even know her." You scolded him but it seemed like he didn't hear a thing from you. He kept glaring at the girl.

"She's my sister, Y/N. How could I not know her?" Jungkook said. You stared at the girl curiously.

"You never told me you have a little sister. I thought she was older than you." You cooed over how adorable she was, pushing Jungkook away to crouch to the girl's level again. "Hi, my name is Y/N."

"I'm Astaroth." She spoke. Even her voice is adorable.

You couldn't resist touching her cheeks and you weren't disappointed when they felt as soft as your younger sister's. Her hair was even tied up in a cute way, "You remind me of my little sister. You're around the same age too!"

"You probably shouldn't do that." Jungkook warned you and you looked back at him, your hands now holding the girl's hand.

"How arrogant." The little girl said and then you felt her hand freezing up until it felt like burning and caught fire but it wasn't the kind of fire that you expected it to. It was more like the burn you feel from holding ice for a long period of time. Not like Jungkook's flames, his was always warm and comforting to you.

"Ah!"

You jerked your hand right away and blew on it. The girl giggled while watching you. "Serves you right. Azazel, don't you teach her any manners? I'm older than her great ancestors yet she talks to me like an infant."

Jungkook took my hand and checked if I was burnt. You told him you were fine. Then he turned to his sister and scowled at her. "What do you want from me?"

"Dad knows. Asmodeus told him." She went inside our place as if it was hers but stopped when Cerberus blocked her way, growling towards her. "Oh, so this is where your mutt went? I was wondering where he was."

"I don't believe that's what you came here for." Jungkook went after her in the living room with you right behind him the entire time. His sister frowned.

"She doesn't look happy." You whispered to Jungkook and she heard me.

"I'm not!" She yelled and stomped her foot, making the whole apartment tremble. Cerberus continued to bark at her, baring his sharp teeth. She clutched her hand in the air as if she wanted to crush something and then her flames just bursted out of her. It looked like the fires of Hell. "That stupid father of ours promised to give the throne to Asmodeus!! Him of all people!! I am the eldest, no doubt more powerful than his other son and clearly the most capable out of everyone but he chose him!"

You noticed that her appearance began to change the more she got upset. The horns on her head, the symbol of evil that the Bible said, appeared like a crown. It reminded you of the time when Jungkook wasn't in full control of his flames yet. He would often go in and out of that state after being triggered by small things from when you were young. You would get scared of him but he never really did anything that hurt you.

"Can you calm down a bit?" Jungkook told her, noticing that you began to shiver. "Y/N is used to me but she's not used to seeing you."

"Oh right.." She glanced at me and sighed, cooling off. The room temperature gradually turned to normal. "I came here to make a deal with you."

"I don't trust anyone." Jungkook replied to her and was going to chase her out but she made him stop with just a sentence.

"Let's lock him up." She said on a serious note. "You know HE won't leave her alone because you can't be with her. So why don't you help me get the throne and I'll help you hide her for now until find a way to keep him locked up."

You were confused so you turned to Jungkook. "Did she mean lock Satan up somewhere? Is that even possible?"

"It is." She answered for Jungkook, wearing a smile. "I know one way to do that but I'll need Jungkook to help me. Only the one with Satan's flames can do it. Well, what do you say, brother?"

Jungkook's stomach growled. "Let me eat breakfast first. I'm starving , Y/N. Do we have eggs? I want sunny side up eggs and bacon."

"Me too." Her sister joined in and jumped on the couch. "And some coffee would be nice."

Figuratively speaking, your jaw dropped after you heard them make a request without even bothering to say please. Annoyed, you placed your hands on your hips and gave them a piece of your mind. "I'm not your personal maid. Just go back to Hell!"