Disclaimer: I don't own Dragon Ball Z, Yu Yu Hakusho, or the characters. I only own my OCs. Not all of the ones mentioned will be active in the story (the long list of OCs: Kaiya, Mika, Suki, Alexia, Nariko, Mayonaka, Kiense, Jiro, and Jake)

Okay, this first chapter is going to be a summary of my Yu Yu Hakusho series, Power Struggle (Power Struggle, Reikai Conspiracy, and The Hunted). It is about three girls that eventually develop demon powers late in life. However, one of the girls actually has a backstory in the DBZ universe. This is Kaiya's side story of how she found her brother, Vegeta, and how she went on in life without knowing. DBZ fans do not need to read the series (because it is long and pretty convoluted XD). The summary will highlight the major parts of Kaiya's life.


Kaiya was a normal girl; at least, she was in the beginning. For eighteen years she lived as a normal, human girl on her home planet, Earth. When she went off to college, she developed troubling abilities. Whenever she was afraid or upset, various flames would shoot from her body. She met two girls who shared not only a possible career studying the sea, but abilities that they could not control. They took a long weekend to meet a psychic who would train them to wield their abilities without hurting themselves and their loved ones.

During this time, they befriended a team of spirit detectives that protected the balance between Earth's three dimensions: Human World (Ningenkai), Spirit World (Reikai), and Demon World (Makai). The team consisted of a demon half-breed (Yusuke Urameshi), a human with heightened spiritual awareness (Kazuma Kuwabara), a fox youkai living within a human body (Kurama AKA Shuichi Minamino), and a fire demon born of a race of ice maidens (Hiei). Kaiya was not quick to trust her new friends, and butted heads with Hiei until, eventually, through fighting as a means of communication, they grew to trust one another.

A few months had gone by since Kaiya and her friends, Mika and Suki, began to train with the psychic, Genkai. After getting the majority of their powers under control, it was discovered that Kaiya had an evil twin sister, a water wielder named Mayonaka. She turned out to be a misguided fool that was following her boyfriend, Kiense, a sadistic fire demon that had qualms with Spirit World. He was the head of a conspiracy against Reikai. The spirit detectives, also known as the Reikai Tantei, managed to take down the sadistic leader. And then it came out that the Kiense they had been fighting was an alternate version of the one Mayonaka had dated.

With the evil leader of the conspiracy gone, Mayonaka and Kaiya were able to coexist; however, all was not forgiven and Mayonaka returned to America to live with the mother she never had a chance to know. Kaiya eventually went home to visit both sides of her family. Hiei followed her, worried about a story he had heard Kaiya tell to Mika and Suki before leaving. He was worried that a relative would cause her harm. Being a former thief, and betrayed by his own kind, he was not willing to let her go alone.

He was right, about the wrong relative. The story was a joke about Kaiya's little cousin. The evil relative in question was Kaiya's and Mayonaka's father. He was a demon hunter, and he did not react well to the fact that both of his daughters were dating demons. By this time, Kaiya and Hiei had foregone their trust barriers and pride to be together. Not only that, but Kaiya had befriended many more demons. Even Kurama's old thieving partner was considered a treasured friend. Kaiya was devastated when she found out about her father, and as new telepathic abilities and visions began to take root in her mind, she found herself reliving a vision she had dreamt, being killed by her father and his electrical powers.

Kaiya's friends did not react well to her death. Hiei was out for blood, as were the others, and they were ready to take her father down. Mayonaka stayed behind to mourn the loss of her sister, and to beg her spirit for forgiveness. Kaiya's body was then filled with energy, but not from her sister's plea for her life. Kaiya had possessed dormant demon blood from a fire demon clan long but forgotten.

The boss of the spirit detectives, Koenma, brought her to the battlefield where her friends would face off against her father. No one had expected her to return, especially not as a demon. The battle was difficult, and Kaiya managed to deal damage to her father, though not enough to kill him. He was ready to take her life again, but Hiei would not let that happen. He refused to lose someone he cared about again.

With the death of Kaiya's father, more demon hunters came out of the woodwork. The girls had gone on a camping trip with the spirit detectives, on which they found out about a ring of demon hunters. More and more of Kaiya's past started to be explained by her cousin. She and her cousin Alexia had been trained as spies during a period of their childhood, and it was found that Kaiya had similar skills as Hiei, Kurama, and Kuronue, the three having been thieves before joining the Reikai Tantei.

When they had come up with a plan to take down a stronghold, Kaiya started developing fears. A thunderstorm had her shaking, despite the fact that she had loved storms before. Her father, Jiro, having killed her with electricity would always haunt her, but she knew there was more than that. She would get caught up in a flashback, zoning out frequently, yet she could not see anything. She would say she was fine, and no one would question her.

Later, another demon hunter attacked, yet again using her family. A student of Jiro found her other cousin and pursued a relationship with her. He did not know that much about Kaiya, though. Hiei accompanied Kaiya home to America, to visit her mother, and to explain Jiro's death. Kaiya was afraid to tell her mother that she was part demon, but her mother accepted the truth. Her mother's niece, Nariko, did not and felt the need to share with her boyfriend the secret that she had heard.

The demon hunter, Jake, kidnapped both girls after Kaiya confessed to Nariko what she had told her mother the day before. Kaiya fought back, but when talismans were used to keep her power at bay, she could only allow Jake to torture her for information until she lost consciousness. She would never give information up on her demon friends.

Eventually the girls were rescued and reunited with their friends. Suki and Mika had long since gone through their own demonic transformations. The series ended with the girls discussing that they would have to get training with their new abilities. But the story did not end there, and this is where the journey continues.


Kaiya would grow stronger every time she had nearly died, and after she had died, but she did not tell her friends. Only Hiei knew because he was the only one who fought her on a daily basis. Even though she knew she was part of a highly powerful fire demon clan, she could not explain her insane power-ups. She continued to have visions of an uncertain future where she would meet the clan, but it had not happened. What she knew was that her ancestral father would appear in her life, or at least she hoped she would.

Mika and Suki were long gone. Kaiya had missed the girls, but she knew they needed to leave the town to find themselves. Mika had a clan of her own to look after, and her advisors were training her to control her demon powers. Suki had decided to follow Kaiya's cousin, Alexia, to the spy organization she had been a part of.

Kaiya was back in her own home, continuing her education in studying marine biology. Hiei thought it was a waste of time, but Kaiya would defend the oceans he did not understand being a wielder of fire. She would always tell him that she was connected to it ever since she was a little girl.

She would also tell him, and her other friends, that she did not remember parts of her childhood. All she remembered was her early years, one big time lapse, and then a continuation. When she talked to Kurama about it, things became more serious. He had suggested she talk to her mother about her lapse in memory.

Kaiya had been going to self-defense classes, as per Jiro's request. That is where she and Alexia were trained to be "spies." Kaiya had nearly blocked that from her memory. The girls would go to class once a week, but even Alexia had mentioned her week long disappearance. Even Kaiya's mother did not remember Kaiya being gone for that long.

Kaiya continued to train her abilities, and continued to have visions of the future, but faces were still hazy. One thing was certain, one of the figures seemed familiar, from somewhere in her past. However, whatever happened was completely erased from her memory. Then something even more bizarre happened.

Kaiya began to have flashbacks.

This was nothing new to her. Kaiya would go off on her own to think about her normal, human past. The problem was that she was also having flashbacks of battles. Battles with Mayonaka, Kiense, Jiro, and many others would replay themselves in her mind, and she would also feel the physical pain each time. One night, Kaiya went into a fit of nightmares, and Hiei began to grow worried.

Now that Kaiya was living alone, he and Kurama decided to keep watch over her as she went through changes. Something had to be done, but no one knew what.

"I just don't get it," Yusuke said. "Koenma said that she was a normal human to start with and that her demon powers shouldn't be having this kind of effect."

"Hn, Koenma is a fool," Hiei snapped. "He always says that Spirit World has no information on what's going on."

"Hiei, this isn't helping her," Kurama said calmly. "But I have a suggestion."

"What is it?" Yusuke and Kuwabara asked simultaneously.

"Well, Kuwabara has access to a lot of computer software at his new job," Kurama started to explain. He sighed when everyone looked at him blankly. "I can use the technology to create a type of device to see inside of her mind, at least while she sleeps. Whatever these nightmares are that have been plaguing her, it's obvious she doesn't remember them when she wakes."

"Okay, but what could computers do?" Kuwabara asked. "It's not like we can link them to her mind."

"There's new technology to study brainwaves," Kurama stated, having thought this thoroughly. "Kuronue and I can get ahold of the materials."

"This sounds WAY too sci-fi for me," Yusuke joked, "but I guess it's better than nothing. I normally wouldn't say this, but even I'M concerned about this. Ever since she came back as a demon like I did, all of these other side effects came up. I was never like this."

"We know this, detective," Hiei growled at the teenager. He sighed reluctantly. "We can't just connect her to some untested machine, though. Not without her consent."

"Of course," Kurama said with a smile. "That's why we're having this meeting. We will only do this is Kaiya agrees to it. Then we will get the materials we need."

"I'll talk to her," Hiei grumbled before disappearing out Kurama's bedroom window. He needed to get to Kaiya and tell her their friend's strange plan.


Kaiya was tossing and turning again, falling off the couch and waking herself up. She attempted to get up, but she really hurt her back this time, or really her tail. Neither Kaiya's friends nor her family had ever seen her tail. To be honest, she had no idea where it came from. When she was nine, she didn't have a tail. Then one day, she woke up, and there was a tail. She knew it wasn't normal. So she hid it from everyone somehow. She may not have known where the furry appendage came from, but it didn't seem to affect her much, except for being completely sensitive. Landing on it was NOT fun.

Kaiya was a strange half-breed. First off, she was a human/demon half-breed. Everything about that screamed paranormal, but she went beyond that. She knew that Yusuke had died like her, and had come back as a demon like her; however, he never had lapses in memory. The only time was when his ancestor used his body to kill a human trying to destroy Human World. It had never happened again, and Yusuke did not suffer from nightmares.

It would have been nice if she could find her ancestors from the Kajika Clan, but Koenma couldn't track down information, or so he had said. All she knew about her clan was that it was a band of fire demons and that they had telepathic abilities.

Even telepathic abilities didn't concern her. The ability to communicate thoughts was not a new concept. Hiei was able to do that with his Jagan eye. The visions, not that strange either. Kuwabara's sister would have premonitions, and she was human. What was strange was that she would get trapped in her memories, of the past. That had never happened to any demons or psychics that she knew, and, at this point, she knew quite a bit.

Another thing that bothered her was how she woke up from nightmares, ones she couldn't remember. A few times, she had woken up Hiei by attacking him as a defense. The problem was that she didn't know what she was defending herself from. She would never remember the terrible dreams, and even Hiei could not focus in on them with the Jagan. They were completely shrouded from her subconscious.

Kaiya didn't even notice that Hiei had entered her apartment, well, at least not until he slammed the door shut. The girl launched herself off the couch, having been deep in thought, trying to hang on to her lost memories. "Oh, Hiei, what are you doing here?" she greeted her boyfriend with a fake smile.

"Don't start with that," Hiei muttered. "We need to talk."

"You should know better than to start a conversation out that way," Kaiya said with a knowing smile. "What's up?" She noted that he was not joking, though. "Did something happen to Yukina?"

Hiei shook his head. Nothing had happened to his sister, and Kaiya knew it. She would always ask that to take Hiei's attention off of her. "It's about you," he said. "Kurama thinks he can figure out a way to see your memories as you dream them."

"Oh?" Kaiya asked. "And how does the great Youko Kurama propose we do this?"

"Apparently with some computers and some wired circuitry," Hiei replied while staring at Kaiya's face to gage her reaction. What worried him was that she had no reaction. "Kaiya…"

"So…he wants to make me into a science experiment," Kaiya said monotonously. "Why?"

"He thinks that, if we can see your memories, we can tell you, and they will be unlocked," Hiei explained. "But we won't do anything unless you consent."

"Consent?" Kaiya shouted at the fire demon. "He wants me to consent to making myself a science experiment?"

"He wants you to consent to getting your memories unlocked," Hiei retorted, matching her volume. "Because I don't know if you've noticed, but they are hurting you, and not even I can figure out what's wrong with you!"

Kaiya went silent after that. She knew Hiei was right, and unfortunately this little experiment would be her best option. "Okay, okay," she reluctantly agreed. "How and when?"

"Let us worry about that," Hiei told her. "We'll take care of the how. Kurama has some type of contraption in mind. Then, once everything is set up, we will do this."

"Let me guess," Kaiya started. "You'll have to use the Jagan to force me to sleep, aren't you?"

"Unless you want to be drugged," Hiei replied with a shrug. "And I already know how you feel about that."

"Right," Kaiya muttered. "Well, then…I guess I'll see you around…you know, when he gets the computer."

Hiei nodded to her and placed his hand on her shoulder to give her a reassuring squeeze. In an instant, he was gone, and Kaiya was left to wonder what her friends would see once they had her in an unconscious state. Whatever it was, Kaiya had a feeling it would not be a good thing.


A/N: Okay, so the first chapter had no DBZ stuff in it, but in the next there will be. Anyways, I need sleep now, so time for bed, so I can write efficiently tomorrow XD