Arc-V. Anime or manga, I don't know. 

"Yuya! Yuto! Yugo! Yuri!" a girl shouted, her aquamarine eyes started to glisten with unshed tears. She walked around in the dark, not having any light except for the light coming off of her.

Then, four cage like things materialized in front of her. "Guys!" the girl exclaimed, her eyes shined with happiness to see them. "Yuna?" one of the boys with blue and yellow hair asked, causing all of the boys to look at her. "How did you guys get like this?" the girl asked, some of her dark and light blue hair fell into her face.

One of the boys with purple and black hair said something, but the girl couldn't hear it. "What was that Yuto? I couldn't hear you." the girl replied with a shaky laugh. Suddenly, all of the boy's' eyes started to glow. Their hair became more unkempt, and a scowl adorned all of their features. "Guys?" the girl asked, afraid. Then, her dragon and their dragons came out from their cards. Odd-Eyes Pendulum Dragon, Dark Rebellion XYZ Dragon, Clear Wing Synchro Dragon, Starve Venom Fusion Dragon, and Poseidra, the Atlantean Dragon. The dragons roared as a buzzing noise started to ring in the girl's ears.

A girl leapt up from her bed, gasping for air and cold sweat on her body. "That dream again." the girl said, laying back down with a soft 'plop'. There was a knock on her door. "Come in." the girl said. The door then opened, revealing four boys who had the same face. "Hey Yuna. You alright?" the one with red and green hair and red eyes asked with concern, sitting on the edge of the bed near the girl. The boy with black and light purple hair and steel grey eyes stood next to the first boy. The boy with blue and yellow hair and light blue eyes sat on the bed a bit further from the first boy. And the last boy, with purple and pink hair and magenta eyes, stood a ways away from them but looked at the girl with concern.

The girl, Yuna, smiled at them. "I'm fine. It's just..." she trailed off, and the boys knew what she meant. "That dream again?" the last boy asked their unspoken question. Yuna just nodded. "Yuya. Yuto. Yugo. Yuri. You wouldn't do that, would you?" Yuna asked with a slight hint of fear in her voice. The boys looked at her with surprise. Then, they all gave her a hug. "You know that we wouldn't. We'd have to be mind-controlled to do that." the first one, Yuya, said. "But, the darkness" the second one, Yuto, said. "Would destroy" the third one, Yugo, said as a smile appeared on his face. "Any chance of that happening." the last one, Yuri, finished. "Thanks. I'm glad to have you all as brothers, even though all of you of you can come out at night when one has the body." Yuna said, breaking the hug. "Never say that again." Yuto said. "That sounded so weird." Yuri said, agreeing with Yuto.