Disclaimer: Naruto is property of Masashi Kishimoto. I don't own this in anyway so please don't sue me.
Chapter two: The Hyūga incident.
Five years after Kurama's forced attack the council was informed of Naruko hosting Kurama and the civilian council called for her death but the shinobi council stopped that idea and Minato made it a S-rank offence to attack Naruko or tell anyone who didn't know the truth. The Hyūga clan matriarch Hikari had a daughter Hinata a few months later and Naruko and Hinata played together, trained together and became very good friends. On the afternoon of Hinata's fifth birthday the hidden cloud village had come to create an alliance with the hidden leaf after years of fighting, however this day was a special day for the Namikaze clan, Minato was in negotiations and Kushina was in the kitchen when her daughter comes running in.
"KAA-CHAN, KAA-CHAN, KAA-CHAN!" Naruko grabs her mother's skirt bouncing up and down.
"What is my little flower?" Kushina asks.
"Look what I can do Kaa-chan." Naruko channels chakra into her eyes and her blue eyes turn red displaying one tomoe in each eye. Kushina's eyes widen in shock at her daughter's new power.
"You unlocked your sharingan." Kushina's eyes start brimming with tears of happiness.
"Kaa-chan why are you crying did I do something bad?" Naruko asks scared.
"No my little flower you did nothing wrong theses are tears of happiness not sorrow. I am proud of you my daughter you have unlocked your sharingan just like you mother." Kushina activates her sharingan showing her daughter her full matured form.
"What's the sharingan Kaa-chan?"
"It's a bloodline limit that I was born with that you unlocked I got it from my father the great Madara Uchiha. Now I will teach you how to wield your sharingan properly but right now Kaa-chan needs to go visit and old friend I am going to drop you off with the Hyūga so you can play with Hinata-chan while I go visit my friend Mikoto." Kushina holds out her hand to her daughter and they both walk towards the Hyūga compound the villagers were glaring at Naruko but none dared do a thing somehow they had learned of Naruko's condition but Kushina's fearful reputation kept them at bay.
(Realm of the afterlife.)
Madara and Hashirama watched their descendant and Madara had a smug look on his face.
"Take that Hashirama our descendant unlocked my bloodline first!" Madara gloats.
"Oh that's nothing with a little practice she can use my bloodline with no trouble at all and I am sure she will learn quickly." Hashirama says to his old friend.
(Back with Kushina)
Kushina had dropped Naruko off at the Hyūga compound and was walking toward the Uchiha compound remember the small note that had been left to her by Madara the night that she unlocked her Mangekyō sharingan.
When the time comes that you need to find out the terrible truth of our clan's eyes head to the main hall, beneath the seventh tatami mat from the far right, and walk all the way down there you will find the terrible truth of our clan's history.
"I guess Tou-san was right after all I do need to read the tablet after all." Kushina walks into the compound and sees Mikoto walking out of her house. "Mikoto-chan!" Kushina says walking over to her friend.
"Kushina-chan it's been a long time how have you been?" Mikoto asks in glee.
"I've been good but I have a favor to ask of you." Kushina's tone turned serious.
"What do you need to ask Kushina-chan?" Mikoto asks
"I need to visit the Naka shrine." Mikoto's eyes widen in shock at what Kushina said.
"How do you know about that?" Mikoto asks
"My father told me about it."
"Normally it wouldn't be allowed an outsider in but since you have the sharingan like we do we can make an exception." Mikoto beckons to Kushina and they both walk into the Uchiha clan dojo and look for the seventh tatami mat from the far right. "Here we are Kushina-chan." Mikoto raises the tatami and Kushina and Mikoto walk down stairs and they both look at the stone activating there sharingan, from what Kushina could read it said.
"To unlock the Mangekyō sharingan one must kill their best friend and then and only then can the power of this eye be unlocked dslfj;sjkfasaksaifas." After that point Kushina can't make out what is says.
"Let me guess you can only read how to unlock the Mangekyō sharingan." Mikoto says to her friend.
"Yea but my guess is there is more let me try my Mangekyō sharingan let's see if I can read more." Kushina's eyes shift to three pointed hurricane with triangles and now she could read more of the shrine.
"However unlocking these eyes comes at a terrible price once unlocked these eyes will slowly work crawl towards blindness eventually completely sealing themselves and leaving the user blind. To prevent blindness one must take the eyes of a sibling or other blood relative such as a child or parent it is only then can one unlock the power of the eternal Mangekyō sharingan however there is one final secret the combination of Senju and Uchiha blood result in the rinnegan my eyes. There is more than fksajflkdjsgasjkf."
"Oh Kami!" Kushina says in terror.
"What is it Kushina-chan?" Mikoto asks
"My daughter and I will have to swap eyes at some point but, there is more when we both unlock the Mangekyō sharingan and we swap eyes I fear that Naruko chan will unlock the rinnegan the powerful eyes of legend."
"But how it is said that the rinnegan is just a legend."
"Oh it's very real I have a bad fealing about what will happen to my daughter if she unlocks the eternal Mangekyō sharingan." Kushina rushes off to get her daughter all the while thinking of what would happen if Naruko in fact unlocked the Mangekyō sharingan, she would swap eyes with her daughter even if it meant she would unlock the rinnegan.
(With Hinata and Naruko)
Naruko and Hinata were jumping and playing around while Neji watched with a smile on his face, just then Hizashi walks over to his son.
"Neji why don't you play with your cousin and her friend?" Hizashi asks
"It is unfitting for a branch member to play with a main branch member." Neji responds.
"Come on Neji I'm sure that Hiashi-sama wouldn't protest besides you train with them all the time what's the difference?"
"Fine if you say so father I will try but I don't think Hinata-sama will appreciate it." Just then Hinata sees Neji and waves happily to him.
"Neji-nii come play with us."
"Yea Neji it'll be fun." Naruko says. Neji smiles and walks over and then looks at Naruko.
"What are we playing?"
"Um… tag." Naruko tags Neji and runs off laughing while Neji just looks shocked.
"OI NARUKO YOU CHEATER!" Neji yells out and runs after her but to his dismay he just can't catch Naruko as she just runs far too fast. After a few hours of playing with Naruko and Hinata Neji gets called in by Hiashi when Neji arrives Hiashi looks very happy about something.
"Is it true that you have been playing with my daughter and Naruko-chan?"
"Yes Hiashi-sama."
"I see in that case I hear by strip you of the Hyūga's caged bird seal and your father as well, by my right as Clan head." Hiashi makes two hand signs and the cage bird on Neji's head shatters.
"Thank you Hiashi-sama." Neji bows deeply crying tears of joy. "But I'm curious how you are getting away with this Hiashi-sama."
"The clan elders have seen the error of their ways and finally agreed that the cadged bird seal should be eliminated permanently. Also Neji no need to call me sama any more just call me uncle."
(Time skip that evening.)
Hinata and Naruko were having a sleep over and Kushina was making sure that she was safe. A figure coated in black and a mask was sneaking into the Hyūga compound and grab Hinata from her bed and then starts running towards the entrance when suddenly his the ground around him bursts into black flames.
"I promised myself I wouldn't use my Mangekyō sharingan unless someone precious to me's life was on the line but Hikari-chan's child classifies as such and can use my eyes maximum potential." Kushina says her Mangekyō sharingan activated her chakra dark as the flames encompass the ground.
"The...Aki…No…Shini." the man says in fear.
"Yeah that's what idiots like you who would attack those precious to me call me." Kushina draws her father's blade and looks at man in front of her. "I will only ask this once why have you kidnapped the Hyūga Heiress?"
"Bite me!" the ninja says.
"Very well you asked for it." Kushina's Mangekyō sharingan starts spinning and the Amaterasu's flame coats her sword and dashes forward and then she slices the shinobi's arm off while Amaterasu burns the arm to ashes. "These flames will burn you to oblivion only I can control them in other words I am the only thing stopping you from burning to a crisp so why don't you just surrender end you won't die a horrible death." Just then fifty Anbu surround the man with swords drawn and Minato standing near his wife.
"Well done Kushina-chan you can retract Amaterasu let us handle it from here." Minato says, and Kushina nods and draws the last of Amaterasu returns to her sword and vanishes and she sheaths the blade. "Why don't you get Tsunade kaa-chan to look at your eyes Kushina and I will handle the interrogation."
"Hai Hokage-kun." Kushina grabbed the burlap sack and took out Hinata who was still out cold.
"Take this man to Ibiki and Anko tell them to make him talk by any means necessary."
"Yes sir." An Anbu responds
(Time skip a few hours at the Torture and Interrogation department.)
"You won't break me ever!" the ninja says to Anko.
"Oh but we will we knew that it would be hard and you certainly are a tough cookie, but we still have one trick left that we have held off using for a while." Anko says and just then Kushina walks in her sharingan activated.
"You're going to tell us exactly what I want to know or you will experience a world that you will never understand." Kushina says
"NEVER!" Kushina sighs and activates her Mangekyō sharingan and locks eyes with the man.
"Tsukuyomi. Now why did you try to take the Hyūga Heiress?"
"The Raikage wanted to end the war between Konohagakure and the Kumogakure but the civilian council wanted a blood line and paid me a hefty sum to kidnap the Hyūga Heiress and bring her back to Kumo to reproduce the Byakugan." The Kumo ambassador replied in a monotone.
"Did they go behind the Raikage's back to do this?"
"Yes they did the Raikage wanted nothing to do with this but the Civilian council wouldn't hear it."
"Thank you for your cooperation." Kushina smiles as she ends the genjutsu.
"What do you mean you bitch I never said anything!"
"Well sucks to be you but we got a taped confession and now we have all we need." Kushina says, then she walks out to relay what she was told by the ninja.