Disclaimer: Naruto is the work of mangaka Masashi Kishimoto, Harry Potter is the work of author J.K. Rowling. The author makes no claim to ownership of the aforementioned works and no profit from this fanfiction.


Uchiha Fukurou

Of Lessons, Lightsabers and Demon Cats


Jiraiya of the Sannin opened another letter as he made his way to the soapland, "...hmmm...greatest fan...hmmm...recently widowed; measurments... hmm, Bust 106 cm... recently got into a foursome with a younger man... pictures included..."

Jiraiya staggered into a massage parlour with a goofy grin and bloody tissues stuffed up his nose, "Lucky bastard..."


A Year Ago, Uchiha Clan Compound

"M-Me?" Mikoto stuttered, startled. Then she said disbelievingly, "Fukurou?"

"No closer than four generations, remember?" Tsuruko told her holding a copy of the family register, "The only ones that qualify in the mandatory age group are you and Miho-dono."

Mikoto sweated, she hadn't really thought that this would happen. Actually when the matter of restoring their clan had been brought up she hadn't thought about the possibility of being paired with a contemporary of her eldest son at all. She'd actually believed that there were no eligible clansmen that met the criteria for her to sire a healthy child with. It might have been selfish but had she known that she might be matched to a boy less than half her age, she might have hesitated to vote in favor of it.

Their clan had always carefully kept track of hereditary lines to ensure the integrity of their bloodline. The Uchiha clan was divided into four distinct family branches that held approximately thirty six members each. The members of the ten to twelve families in each branch were only required to marry within the clan every third generation. The clan's Elders kept track of the matter, preventing cousins from marrying within the same branch too many times in succession. It was a very uncomfortable topic to bring up but it was one Mikoto had to take seriously given that eighty percent of the clan's sharingan bearing ninja had been killed in the massacre.

This meant that the clan had been set back nearly sixty years or more in terms of the number of sharingan wielders that they could reliably produce. They were not likely to go extinct but if the clan was to thrive, then to put it bluntly, they needed to start making babies. In that case there were two entire generations that could take up that task given time and one generation, Mikoto's; that needed to begin doing so urgently.

Her marriage to Fugaku had been arranged by her mother but it didn't mean that she never loved her husband, her world just wasn't that simple. If nothing else, the man gave her two sons that she loved regardless of how things turned out. Mikoto's inner kunoichi on the other hand was unfazed at being commanded to seduce Fukurou. It was far from the most onerous thing that she could have been asked to do as a shinobi. Also there were seven other women like her between the ages of thirty-five to forty that would be required to do this with other men of the clan.

Still, seduce Fukurou? Could she do that after all that had happened between them? She looked at Miho, younger than her by a year and had apparently tried seducing her former student prior to approaching Mikoto with Tsuruko about the issue. Fukurou was mature for a sixteen year old but it couldn't have been easy for the woman, making a play for such a younger man must have been mortifying.

Miho, upon seeing Mikoto's thoughtful look, completely misunderstood what the older woman was thinking. She sighed, placing an arm under her breasts and admitted shamelessly, "I showed him the girls and he ran away," she shrugged, "Perhaps it was a bit much to corner him in the baths but I never had this problem with Nobuyuki-kun. Darling would just leap up and have a go until he couldn't get it up anymore."

Tsuruko took a quick sip of tea to hide her blush while Mikoto, struggled not palm her face in exasperation. Miho continued on blithely, "I think he's a virgin Miko-nee. He turned such a nice shade of red. Darling could only get it up four times a night with special medicine, five if I sat on his face afterward." She cocked her head to a side while sticking a finger under her chin, "A sixteen year old ninja should be able to do it at least ten times before passing out." She muttered appraisingly.

Tsuruko, a normally unflappable ninja, was still a traditionalist and obviously found her older cousin's frank sexual monologue uncomfortable given the younger woman's heated blush. Mikoto by this point had remembered that Nobuyuki, Miho's husband, had died of a heart attack a few years before the massacre. She also caught the satisfied look in Miho's eyes and bit back a sigh. The woman's ditzy act made it easy to discount her, now Mikoto remembered who she was dealing with.

Uchiha Miho had been a genjutsu specialist and poison user that excelled in honey pot type missions. She strung her victims along with false memories of bedroom trysts that never happened and them killed them when their use was at an end. Her marriage to Nobuyuki, a man old enough to remember the Second Hokage in his glory days, had been due to rumors that Miho's excellent erotic illusions weren't just fueled by her vivid imagination. The Elder had hitched her to the most taciturn of possible husbands, thirty years her senior.

According to gossip, Miho had wrung her husband's seed from him the way Mikoto cleaned her son's futon, working it over persistently, vigorously, meticulously, beating it with a paddle, wringing out every last drop of liquid and then hanging it out to dry. Only, in this case, 'hanging it out to dry' was a euphemism for an awkward two hour eulogy where Miho tearfully extolled her late husband's prowess in bed and mourned the loss of his 'Little Nobuyuki'.

Miho turned that fox-look on Mikoto then, "Oh! I know! Miko-nee should be the one to go first! You were his teacher for a while right? Sexy-sensei should give our cute virgin a few remedial lessons, eh?"

Mikoto found herself caught between fighting down a blush and fighting the urge to deck the smirking bitch tittering at her reaction. It seemed like her options with Fukurou were similarly limited. Either take care of Fukurou's 'education' herself, or leave it to the sexual deviant sitting next to her… Miho better not still be writing fan mail to the author of Icha Icha.


Present Day, Root River Complex

Fukurou held his hand as if grasping the hilt of a sword. His continual refinement of the seal array over his elemental training was finally bearing fruit. A dot of light formed in his palm as the Root agent Kensei closed on him with his wind enhanced hatchet. Just as the weapon seemed poised to decapitate the Root commander it halted as if blocked by something.

-SnapHiss!-

With a smell of ozone, that something turned out to be a tightly wound cylinder of wind that then became superheated and electrified turning a blue glowing rod of destruction. The heat that his weapon created was confined to a hazy sheath close to the surface of the cycling stream of plasma. Fukurou's yin chakra gave the blade its shape while his yang chakra let him manipulate the strength of the containment fields constraining the hybrid chakras that he molded.

It allowed him to alter between having a weapon as hard as diamond with a virtual edge that cut atomic bonds and an immaterial blade that immolated all that it touched. It looked a bit like the Raijin no ken but there was no handle and the weapon seemed to have no edge. From Danzo's memories he firmly believed his technique to be superior to the other seal less techniques that the man had known of included the Fourth Hokage's vaunted Rasengan. It was an amazing accomplishment but given what Konoha's enemies had to offer, he needed more than a close combat technique.

Kensei leapt back as the blade of light smoothly sliced through steel head of his hatchet without the slightest hesitation. It completely disregarded the wind enhancement and would have lopped off the man's arm if he hadn't trusted his sharingan and moved the instant Fukurou's blade ignited. The fire element softened the metal. The lightning element broke down the structure of the material with high frequency vibrations. The many rotating wind element blades moving along the weapon's length made a thousand cuts a second with each vibration.

It was a blade that could in theory cut anything, but could not in turn be cut by anything. Fukurou called this technique Kongō no Ken. It was one of a set of techniques that he was both creating with memories from Old Harry's life and refining with Danzo's knowledge of ninjutsu.

Kensei twisted to one side, only just evading an arrow of light that caused his armor to sizzle and form heat bubbles. Fukurou knocked him flat by detonating the technique that had sped past. It was also detonated in part to prevent it from penetrating the Root base's barrier and alerting passers-by to the location of the hidden installation. Kensei was still tumbling when Kana darting in, in his stead, with an attack that would have gotten anyone without the ability to see chakra.

The Root medic attacked with seven heavy, metal darts coated in poison. Given her profession, Kana preferred conservative attacks that used very little of her chakra. By perfecting her weapon manipulation technique she was able to create an effective attacking style while not wasting energy needed for healing. Her specific puppeteer technique allowed her to be mobile, keeping her darts within a hundred meters of her.

A hand clap from Fukurou released a more sophisticated version of the attack that had killed Danzo. Only this time the flash of light radiated outward from Fukurou's body in a thin shell that slagged the seven darts sent at his front, and the three lightning sheathed darts that were coming from behind. The sharingan implanted in Kana's eye whirled alarmingly as she frantically dodged the spray of molten metal that resulted from her darts impacting on Fukurou's technique. The close combat specialist Zanza was forced to halt his charge and attacks from the remaining two splashed harmlessly on the wall of light.

An alarm bell rang out, signaling that it was time to bring the spar to a close. The barrier faded in a halo of glowing motes and Fukurou breathed deeply, suppressing the hollow feeling in his stomach and the weariness caused by near chakra exhaustion and physical overexertion. The five shinobi training with Fukurou weren't wearing their masks so he could clearly see the seal script that scrolled down one side of Kana's face, from brow to jaw passing over her implanted sharingan. As he watched idly, Fukurou's unique mix of seals contracted into a dark pigmentation around her left eye, looking like the Eye of Horus.

Fukurou's Wedjat Seal stored excess chakra while the subject was at rest and used it to boost physical vitality and chakra levels when activated. For someone like Kana whose real eye was kept in stasis, this allowed for nearly twenty minutes of sharingan usage during a combat scenario, better than Sharingan Kakashi, though only due to the woman's excellent chakra control.

Most of the others were at least capable of going at it for fifteen minutes. The seal was also able to force the sharingan dormant, allowing Kana and the nine other implanted shinobi to retain their binocular vision albeit with dichromatic eyes. A pair of shades or some makeup was all that was needed to cover up the seal.

The group in its entirety was called the Jūninriki or the Strength of Ten. They were Fukurou's most capable operators chosen from among those Danzo had specifically trained for eventual sharingan implantation as one of his contingencies. Not wanting to let the death of his kin be meaningless Fukurou took advantage of that contingency after ensuring the chosen agents loyalty with his techniques. In addition to the seals allowing them the use of the artificially enhanced sharingan that had been in Shisui's arm they also had peril retrieval measures similar to those Fukurou had developed for use by his clan's ninja with an additional port key seal placed on the eye itself in the event of death or betrayal.

That option hadn't yet needed to be exercised although a few missions had been dangerous enough to warrant the full depletion of the chakra stored in their seals. A basic flaw in the use of the implanted sharingan was that it took three days to safely use one that had had its supporting seal's store of chakra fully depleted. Three days was how long it took on average to gather enough chakra for twenty minutes of safe usage. As a result the Jūninriki were carefully deployed, mostly in areas of conflict where encounters with Kumo-nin were expected.

Kumogakure had been losing the proxy wars badly. It was at the point that Yugito Nii, Kumo's jinchūriki of the Two-Tailed Cat had been put in the field as the ultimate ante up. Root missions to neutralize rebels, politicians and agents sympathetic to Cloud were running into increasing difficulties. This was why Fukurou was only training with five of the ten Jūninriki. The others were on a mission in the Land of Frost, aiding a defector cross the border into the Land of Hot Water. Those that remained behind trained with Fukurou and the teams of Uchiha genin and chunin.


Root River Complex

Paperwork spawns wherever an organization struggles to bring order to the chaos of a logistical command. While he didn't have to personally approve say, how many mushrooms to order from Vegetable Country to make up for the recruits' growing Vitamin D deficiency. He did have to sign off on things like major purchases of weapons which in the case of a secret organization that was actually thousands of smaller purchases made from smithies all over the Elemental Countries so as to keep both their equipment and operations a secret. There were a couple of shinobi on the payroll whose ultimate ninja technique was dreaming up new ways to rationalize purchasing thousand ryō toilet seats to the Hokage.

In the midst of this battle an alert came in to the command post. Entering the room and standing under several large maps of the Elemental Countries Fukurou listened as the shinobi linked to the team reporting in relayed their message. Somehow Kumo shinobi had caught up to the group escorting the defector. A warning that their defector had double-crossed them was followed by a twinge in Fukurou's arm.

He knew what it was even before rolling up his sleeve. A red patch of skin, spelling the name Murasaki, darkened and then faded away. It was replaced by a single green tomoe that slowly faded as he pulled the sleeve back down. One of the ninja of the Jūninriki was dead and his body consumed without trace by the Yin-Fire seal Fukurou had created for use by Root. The single tomoe meant that the eye was returned safely to stasis in a secure vault at an Uchiha hideout.

Now he had to decide what to do for the four survivors. Their seal communicators were still working and they were relaying info back to command. The fake defector was dead and they had so far avoided capture. Unfortunately they were trapped in a valley with the Niibi jinchūriki on one end already in her demon cat state and a platoon of shinobi at the other end of the valley between them and the buried seal that would take them home if only they could get there.

Fukurou had five minutes left to decide what to do. Any longer and the Jūninriki's sharingan's would start cutting into their life force and kill them outright from chakra exhaustion. On his order's those brainwashed men and woman would gladly sacrifice themselves to ensure operational security and protect their sharingan. Actually, all that he needed to do was take the eyes away with a single hand seal and they would know what to do. The Kumo shinobi had no chance of gaining prisoners, they just didn't know that yet and were still trying to force a surrender.

The smart thing to do was to abandon his people to their fate, live, learn and fight again...

Of the sixteen men in the platoon guarding the end of the valley opposite the Niibi, twelve were dead before any of the Kumo shinobi realized they were under attack. Three of them were finished off by Fukurou whose skill with throwing weapons had advanced to a similar level as his skill with a bow and arrow. The ambush had been easy to set up. While a Root agent bearing the proper seal needed to be within fifty yards of the port key waypoint for extraction, the detection range of each buried rod was a little over a kilometer.

That meant that the rescue squad knew the exact positions of the Kumo shinobi, which was roughly one hundred meters away from the waypoint in a cresent formation facing the ninja they were trying to capture. An order by Fukurou just before the ambush occupied the enemy shinobi with a seemingly suicidal charge by the team in need of rescue. With what was happening before them, they weren't paying attention to the Root assassins that appeared from behind already ready to throw a collection of elementally enhanced weaponry.

Of the four survivors, one was killed by the charging Jūninriki who completed the pincer maneuver. A masked Fukurou parried a lightning sheathed sword with a wind enhanced ninjatō and then hypnotized the more skillful swordsman into fatally stabbing one of his surprised comrades. Immediately afterwards an electrified kusari-fundo strapped Fukurou's dazed opponent to a screaming comrade seconds before the explosive tags tied to each of the fundo detonated.

The Jūninriki were almost within range of the waypoint when Fukurou felt it. Having seen her allies slaughtered, the Niibi jinchūriki decided to forgo taking prisoners and just kill them all. She was charging an enormous Biju Ball, getting ready to simply destroy the end of the valley. With seconds to spare Fukurou activated a technique created for dealing with just this kind of situation, defending against an overwhelming frontal attack.

Light blossomed before him and the roar of the Niibi as it unleashed its attack drowned out part of his words.

"-noō Yottsu no Enkan!"he cried.

There was an echoing boom that filled the valley and Fukurou shook his head as he looked at the violet streamers of Yin-Fire that flowed from what could now be counted as one of the few techniques able to stand up to a Biju Ball.

Fukurou could only shake his head amazed, 'It destroyed two layers in one go!' He thought as the last of his team vanished. Fukurou's technique used a combination of elements to generate barrier of tightly compressed plasma. Its true structure was actually that of several invisible cyclones, flattened and stretched out. They were layered one atop the other to form a shield. Each cyclone was driven and fed energy by what looked like a star at the center of a beautiful Hyacinth flower where each petal was a streamer of Yin-Fire and lightning formed when the cyclones rubbed together.

There were four layers in the barrier Fukurou had created at the cost of almost all of his chakra and two were already destroyed. Desperate, he awkwardly projected the barrier forward and slapped the Niibi in the face with what was basically a giant belt sander, one designed to degrade and deflect enemy jutsu. The creature released an earsplitting yowl as it was driven into the earth by the technique that had suddenly slammed it in the face. Fukurou then released his technique without first killing the star at its center.

First, a blast of superheated air rushed out, scorching every living thing within seventy-five meters of Nii Yugito. This blast of air turned into a hurricane force wind that knocked down the Kumo observers along the valley's ridge. It also likely saved their lives as the plasma ball expanded, igniting the air sending a roiling mass of fire everywhere, including Fukurou's position. However, when the explosion had passed, the only body to be found was that of an unconscious Ygito Nii. Amongst their ranks, Kumo's official position was that the shinobi who defeated Yugito must have died in the attack. This did not however, stop uneasy whispers from those that had seen Fukurou's mask, whispers of a ninja that fought like an Asura.


AN: Kongō no Ken, the Vajra Blade or the Blade of Indestructible Truth.

Also Kusari-fundo, a chain with weights on either end, I had Root Agent Jin throw it like a bolas but its not something that's used that way according to memory.

Naruto storyline starts next, Sasuke states his ambition, an old character returns and the Mission to Wave. Sometimes you can't please everyone. Some want a longer chapter and don't care about speed, some want a faster chapter and don't care about length. Some love the twists in the story, some wish it was simpler. I always look through reviews for ones with helpful advice there's no laziness in my writing, I just have my own style.

TTFN.