Disclaimer: Not mine. The original characters, concepts and jutsu are, though. I'm sure I'm not the only one with the idea of combining Sharingan and Byakugan, feel free to suggest an alternative title, but this has been a long time in planning and I wanted something up.

This begins six years before Naruto begins. Hanabi is two, our lovely main characters are six. Hence they are seven years older than the twins.

Updates might not be so regular, but tht's because I've got a lot riding on this story. Should be finished over summer, no promises, but I'm aiming for the highest quality this time around.

Charm


It... hurt.

All she could see were two eyes, burning red coals in the absolute darkness of his genjutsu, Sharingan dots swimming around the pupil.

"Hiashi-sama!" she tried to scream, but she could feel the words dying as they left her mouth. She was in his power in this, her house.

He was, if not actually gentle, no harsher than he needed to be. Cold, pale hands infinitely stronger than her own, the long fingers tinged red with the glow from his eyes, the only light source in the gloom.

"Gomen," he told her, no emotion in his voice. As if he had shut that part of his brain down. "This needs to be done. It must be me, now that the rest of the Uchiha are fallen. Only my brother remains, and he is not fit to father a child."

Father...

She screamed in earnest now, as he lifted her from her futon without apparent effort and toe her nightgown away indifferently with his free hand. What she could see of his face didn't change. "Be silent," he told her, obviously losing patience fast with her noise. Without meaning to, abruptly, she obeyed him. Tears poured down her cheeks, wearing them raw as she fought to protest against her traitorous body.

Then, despite the Byakugan sharpening her eyes, his Sharingan caught and held her. She flopped limply on the end of his arm, as he lay her down to finish the deed.

Nine months later, a daughter was born to the Hyuuga.


The day the Hyuuga twins were born, the Sannin Tsunade was summoned to the Main House. Both babies, the squalling boy demanding attention and the quiet girl looking around inquisitively, had the characteristic silver-white eyes of the Byakugan, but every Hyuuga in attendance could see the difference. Tsunade saw it too, but said nothing until she had the chance to check both children minutely. Her medic training had included midwifery, of course, and she knew her way with infants. Soon enough, she looked up to hard-faced Hiashi and the panting, red-faced mother with a strange expression.

"I did not know this was possible," she said carefully, knowing that Hiashi would order the infants destroyed if they carried some kind of defect. Probably do it himself... "These children, both of them have identical... double bloodline limits."

Gasps.

"Is that... possible?" the poor mother started to ask. Hiashi interrupted her, his face stern but somehow eager.

"And what is your opinion? Is Hayata's story true? Do these children carry both the Sharingan and Byakugan?"

Tsunade fixed him with a glare, then softened the look. He was the grandfather and the clan patriarch, after all. He had a right to know. "Hiashi-san, they do."

He didn't reply for a moment, and the only sound in the room was the cries of the boy-child. Then he turned to the mother, whom Tsunade guessed was Hayata. She quailed back from the mighty Jounin, and Tsunade bristled behind his back. If he touched her...

"You have brought much honour to the Hyuuga this day," he told her gravely, and bowed formally to her. After a stunned moment she returned the movement, too relieved to speak.

That told the blonde woman even more, as the tension trickled away. The woman had been petrified with fear, not only for her children, but for herself. Hiashi showed no mercy to those who endangered the Hyuuga's supremacy, even other members of the head family.

"The female is the younger," Hiashi said as if to himself. "Two-year-old Hanabi has no branch-family opposite; they will be bound together by the honour seal." Curse seal, Tsunade thought immediately. Trust the self-glorifying Hyuuga to call it an 'honour...'

"And the boy will be brought into the Head Family, as it should be."

You sexist bastard! You just want the Uchiha boy! she roared internally at him. But they were his responsibility, not hers, and she had spent enough time here already. Tsunade took her leave then, knowing she wasn't needed for anything else. Twins combining the Sharingan and Byakugan, she mused. Who would have imagined it possible?

Powerful genius Shinobi for the glory of Konoha village. And the Hyuuga family in particular, she thought sarcastically. She almost regretted her resolve to flee the Fire Country, curious as to how they would grow up. With both Uchiha and Hyuuga blood, there wouldn't be much to stand in the way of those two...


"Byakugan!"

One of the first words she had learnt.

"Sharingan!"

The very first word he had spoken. The strangeness of their dual bloodline limits had given him the advantage, awakening the copy wheel eye at only ten. She had no such luck, but had held a counter-advantage up until this year, spending the first decade of her life learning about the Byakugan they both held. He had shrugged it off as a waste of time and devoted himself to awakening his Sharingan through pure willpower. It had worked.

Their kunai clashed; once, twice, and they glared at each other over their locked blades. He broke the clinch first; she was stronger than him for now, but she knew it wouldn't be that way in a few years' time.

But for now she had him off-balance. She lunged, raining open-handed blows on his chest that wouldn't do more than bruise through the protective padding they wore. He gasped and whirled, throwing out his leg as he spun to take her feet from under her. Her Byakugan, still giving her a full field of view, showed her his wrist locked against the ground and rather than jump the sweep as he expected, she moved with it, diving onto her shoulder and rolling to her feet. He hadn't anticipated that, and when his tensed arm flexed and launched him into a high kick, she was ready.

One, two, three kunai flashed into his stomach, followed by a shuriken lodging in his unprotected face. She had time enough to gasp in horror before he vanished in a puff of smoke. Her projectiles dropped to the ground, tangled up in the billowing sheet.

Hitomi whistled, impressed at his bravery even though she knew he had nothing else to substitute. "I don't believe it! You used Hiashi-sama's robe for Kawarimi no jutsu!" She glanced over at the washing line strung between two walls of the Hyuuga training ground, its most prominent item now dragging in the dust. The head of their family hadn't softened in his advancing age, and neither of them desired any kind of confrontation with him.

"Like I had a choice!" her irate brother's voice snapped. "If someone would keep their gentle fists to themselves..." He climbed up from the well he had concealed himself inside during the substitution.

She put her hands on her hips, looking more than ever like her mother. "Well, if you thought for a change, you'd remember that you have the same training. If you fought like a Hyuuga and not an Uchiha..."

He snorted. You don't even know what an Uchiha is!"

"Sure I do! Hanabi-nee-sama told me! It was a family, but they all died. They weren't as strong as the Hyuuga... because they only had Sharingan!"

Her jab at her brother's only advantage over her had a greater effect than she imagined. His eyes, pupil-less and white with the Byakugan but dotted with a single Sharingan seal, narrowed. Despite their distance, she could clearly see with her enhanced vision as a second dot faded into view on the sclera.

"I'll make you swallow that," he promised, suddenly sounding serious. "One day, I'll show you Byakugan is no match for the Sharingan."


Most of her childhood was a blur, but that memory stuck in her mind with crystal clarity.

Since that day, the tables had turned and in their practice sparring, she had never bested him again.