Disclaimer: I do not own Bleach or Naruto. Only the OC is my idea, her backstory, abilities, appearance, etc. I do not make any money from this story. Some characters may be a bit out of character.

Neji deeply scowled while the others took stances around them. "Kiba, Hinata, Lee, Akamaru, Shino, Tenzo, let's go," Kurenai ordered as she moved towards their original destination. The others that she named slowly moved towards her, however Aizen glanced at the group and flared his reiatsu causing them to sweat before they passed out. Glancing over Chiaki realized that the only ones still standing were herself, Kisuke, Yoruichi and Neji.

'Incredible! He took them all out just by looking at them,' Neji thought to himself. His stomach tensed when he saw Aizen moving towards Hinata. Just as Aizen raised his hand towards the unconscious Hyuga woman, a yellow octagonal shield of kido energy formed around her as well as the other unconscious Shinobi. Aizen smirked as he unleashed a blast of kido energy anyhow, only to have it ricochet back to him with twice the force of the spell he'd used.

"They say you're a genius. I doubt that," Chiaki's voice stated as she regarded him with a smirk. When Aizen looked in her direction she stated, "after all, if you were a genius you'd know better than to get into a kido fight with the strongest kido practitioner."

"You created a barrier that not only shields from on coming attacks, but deflects them back to the caster with doubled strength," Aizen observed.

"A barrier designed to shield them from you entirely. Once you flared your spiritual pressure I had all the information I needed to effectively defend them against you," she revealed.

He smiled slightly as he replied," impressive. For someone so young you've certainly got a good grasp of how kido functions."

"I didn't receive my rank because of my bloodline," Chiaki quipped back as she kept her eyes trained on him. Neji kept his eyes locked on Aizen. The man vanished from sight momentarily before reappearing directly in front of Neji. He moved to thrust his hand into Neji's chest, but blinked when he came into contact with a wooden log.

Neji appeared behind the despicable man. Kisuke and Yoruichi's attention however was sky bound. Following their gaze with his byakugan active, Neji gasped at the sight. The sky its self seemed to be cracking and something was trying to come through.

"This is too much for the others to handle alone," Kisuke lamented.

"Go, both of you. I'll stay here," Chiaki stated.

Yoruichi glanced to her as she scolded, "Chiaki he's-"

Chiaki interrupted her abruptly with, "I'm aware, and I'm telling you: I've got this. The others won't with that many trying to come here. They'll need you both to help them seal that rift. That's your focus now. Whatever you sense from this fight, don't intervene."

"Keep your head straight, kid," Kisuke cautioned as he left the area. Yoruichi glanced to Neji before following Kisuke.

Neji kept his eye on Aizen from his position while Chiaki kept her gaze focused on him from her angle. Aizen chuckled a bit as he taunted, "I suppose the one that I killed that day was your sibling. She had the courage of a shinigami. She gave her life to protect you. What a waste. You can't even stomach to face me alone, Chiaki."

Neji didn't respond to Aizen although inside he felt an anger surging within him that he hadn't felt in years while Chiaki appeared stoic. The boiling anger he felt simmered to annoyance in realizing that what Aizen had said held no sway over her. Relief replaced the rage as he regarded the man before him.

Aizen looked to Neji and scoffed, "A mere human and yet you can withstand my presence. There must be something unusual about you. Your eyes are certainly unlike any I've seen."

Neji took Chiaki's lead, and didn't reply to the former Captain. Aizen smirked before reappearing behind Neji and again bringing his arm back to penetrate the Hyuga man's body.

Instead Neji landed two strikes on Aizen's chest, then four, then eight, then sixteen, then thirty-two, then sixty four, before adding in another set for one hundred-twenty-eight strikes.

Aizen found himself unable to move after the strikes landed, his eyes widened as he wondered to himself what had happened.

Meanwhile Chiaki made several symbols in the air before aiming an open palm at Aizen, "Thirty Era Seal transport!"

Aizen's chest began to glow red before several crystalline shapes protruded from his body.

"My eyes are an indication of my dojutsu, an ability passed down genetically through my clan for several generations. There are many but mine is called Byakugan. It grants me nearly perfect 360 vision, allows me to see through objects. This allows my clan to utilize a taijutsu unique to us as it requires the byakugan to successfully execute called 'gentle fist'. Essentially, it allows me to disrupt the internal flow of chakra in Shinobi or in the case of hollows and indeed Shinigami, disrupt their flow of Reiatsu. Doing so in Shinobi can be fatal if certain pathways are blocked. Just now I disrupted several of your main reiatsu pathways, that's why you found yourself unable to move," Neji revealed.

Chiaki smirked as her bankai deactivated, she sealed her Zanpaukto, sheathing it at her side.

"You're right about Mizuki. She was brave, courageous, compassionate, and the best sister I could've asked for. I don't need to know what happened that day. She caught wind that you were looking for me, and she impersonated me so you'd think it was your intended target you were facing that day. I guess you knew about me, but not her. Not surprising really. She was kept secret within the second squad and I moved around a lot so of course you'd hear of me, or see me. But that's okay. You may have hurt me repeatedly but I will not lower myself to your level. Enjoy your thirty thousand years in Muken. You won't be escaping twice," Chiaki advised.

"It's only twenty thousand," Aizen laughed.

Chiaki giggled, delicately covering her teeth as she informed him, "it was twenty thousand, now it's thirty. Your escape earned you another ten eras, and if you attempt to escape twice this kido will automatically activate and transport you back."

"You are an insignificant disrespectful brat! I AM YOUR FATHER!"

"Providing DNA isn't enough to make someone a father. I have a father. His name and title is Captain-Commander Shunsui Sakuranosuke Jiro Kyoraku, and I have nothing but respect for the man," Chiaki corrected him.

Aizen scowled deeply before he seemed to be engulfed in flames and then there was nothing where he'd previously stood except scorched earth.

With Aizen gone, Chiaki lowered the barriers that had been protecting the others. "I'll help you keep watch until they wake up," Chiaki stated.

Neji nodded and gave a heavy sigh, "I guess you're leaving sooner than we'd hoped."

Chiaki glanced to him and with down cast eyes replied, "Perhaps."