As Hiei napped in a tree outside of Mukuro's home, he felt a demon's energy rising in the distance. Instead of moving he decided to lay still and ignore it, just before his arm was sliced into near the shoulder. He grimmanced in pain and looked around, "What the hell was that?"
He looked at the cut that was now bleeding from his arm. He jumped out of the tree and examined the area with his jagan, but couldn't see anything out of the ordinary. Then he realized his vision was starting to fail. He stumbled backward onto the tree he was standing next to and sat on the ground. Shadowy figures moved in.
"It's him!" one said.
"Take him down," someone else said as Hiei closed his eyes and went to sleep.
Hiei woke up with his arms and legs outstretched by chains and shackles. A dark room came into focus with a tall man with white hair walked over to him. "Are you Hiei the swordsman or not?" he demanded.
"Where am I?" Hiei asked as he looked around and saw how tall the ceiling was, but there were no windows. Electricty pulsed through his body for a moment before it stopped.
"Answer me," the man demanded, "or this goes on for much longer than you can handle."
"Try me," Hiei demanded. The man sliced his face open and then electrocuted him for a full minute.
He said, "Are you Hiei or not?"
"I am," he chocked his answer, "who the hell are you?"
"You don't need to know," he answered.
"Sir," another smaller demon said as he walked up behind him, "we're sure this was Mukuro's second in command when she was in power."
"I got that," he replied, "you weren't much help." He threw a knife through his throat, killing the smaller demon instantly.
Hiei didn't care about the carnage he just saw and demanded, "What do you want?"
"You're never going to know," he replied, "muzzel him, and do it quick so we can get this over with." He pulled out a giant needle out of a space in the wall and held it up. The liquid was glowing blue.
Hiei tried to break himself free from the chains as another demon wrapped a cloth around his face. The white haired man walked over with the needle and that's the last thing he remembered. His eyes went blank. "There," the man said, "that disconnects the sentient part of your brain from everything else, so now, your concious is asleep and you'll do whatever I want." He took off Hiei's headband and revealed the jagan.
"It's about time we were all together again," Yusuke said as he sat on Kurama's couch, "When was the last time we all hung out without having to fight someone."
"Never," Kurama replied, "well, not since we all saw each other at Genkai's and you finally came back from demon world."
Kuwabara said, "Yeah it sure took you long enough to come back. I'm surprised Keiko waited as long as she did you know."
"Yeah, yeah," Yusuke replied as he grabbed a drink from the coffee table, "so what should we do? Whoa." He sat up in his seat. "Tell me you guys feel that."
"It's Hiei," Kurama said nervously, "he's at the border between worlds right now."
"Yeah," Kuwabara said, "I can feel it. Why's he producing so much energy?"
Yusuke stood up and said, "We better go check this out, guys. Come on."
"Koenma sir!" Jorge shouted as he bursted through Koenma's office, "There's a huge-sir?" He said him calmly sitting at his desk with Botan standing in front of him.
"Botan just informed me," he explained, "and I can feel it for myself."
"It's Hiei," Botan said as she looked at the screen showing him walking through to human world, "what should we do?"