Jeon Jungkook and Kim Taehyung

Hours later, Bella and Lisa walked through the rusty castle gates, lanterns in hand. The place seemed even larger up close—gigantic, dark, alive. Lisa held her sister's arm.
Are you sure about that?
Bella tried to appear confident.
— We're paranormal researchers, remember?
The enormous doors creaked as they entered. The silence was eerie. The sound of footsteps echoed through the corridors, until Bella sensed someone watching. She quickly turned her flashlight. Nothing. But Jungkook was there, hidden in the shadows of the second floor, watching her. And in that instant, something inside him changed completely. He never believed in love. Vampires didn't allow themselves to feel that way; centuries of living alone had frozen his heart. But when he saw Bella, it was as if the world had stopped. Taehyung appeared beside his brother and looked at Lisa. Lisa was trying to appear brave while examining an old portrait. Taehyung smiled slightly.
"I guess we're not the only curious ones here. " Jungkook slowly descended the stairs. Bella's eyes widened as she finally saw him emerge from the darkness. Tall, pale, frighteningly handsome, Lisa was startled when Taehyung appeared behind her.
"Who are you?! " Bella asked, trying to hide her fear. Jungkook continued to look only at her.
This castle is not safe for humans.
His voice was calm and deep. Bella tried to maintain her composure.
"We investigate supernatural cases. We're not afraid. " Taehyung let out a low laugh.
Every human says that before discovering the truth.
Lisa stared at Taehyung suspiciously.
— And what would the truth be?
The two siblings' eyes turned red at the same time. Bella felt her heart race. Vampires. The books were right. Lisa held her sister's hand tightly. But strangely, neither of them attacked. Jungkook slowly approached Bella. She should have been terrified, but she couldn't move.
"You should run away, " he said quietly.
"And you should let me go," Bella replied.

Create a story: Jungkook and Taehyung were brothers, vampires, living in a huge, abandoned castle. Their parents died in a fire. Jungkook was the older brother and always looked after him. On the other side of town, there were Bella and Lisa, two sisters who were always alone. Their parents abandoned them. Bella was the older sister and always looked after Lisa. They were researchers of supernatural cases and decided to go to a huge abandoned castle, but neither of them knew what would happen: Jungkook fell in love at first sight with Bella, and Taehyung with Lisa.