-Broadcast-
There was no sunrise inside Leviathan. There was no sky.
What there was, at a reliable interval each day, was light — produced by a colony of spore creatures that lived in symbiosis with the whale, appearing in clusters to clean the accumulated residue from the interior's surfaces. When they fed, the tips of their bodies glowed. Uchiha Izuna had long since learned to read this as the whale-world's equivalent of morning and organized his days around it.
Charlotte Hikaru and Charlotte Katakuri woke to white light coming through the gaps in the small house's doorframe. Their biological clocks had no useful opinion about what time it was, but their bodies had rested, and that was what mattered. They came out to find Izuna already at the fire, preparing grilled fish with the unhurried efficiency of someone who had done this enough times that the process had stopped requiring his full attention.
Breakfast was the same as dinner. It would, by all appearances, be the same as lunch.
"Leviathan eats seafood," Izuna said, without being asked, placing a skewer into Charlotte Hikaru's hands. "It has no particular interest in anything humans grow or gather. What comes through its mouth is what I have to work with, and what comes through its mouth is fish." He shrugged. "I made my peace with it."
He had also made his peace with proportions — or thought he had. The previous evening had recalibrated his estimates. He added more fish to the fire.
Charlotte Hikaru ate and watched him work the seals with one hand while managing the skewers with the other, the Fire Style releasing in controlled increments, temperature held exactly where he wanted it without visible effort. She had a question forming that she'd been carrying since yesterday.
"Water Style, Fire Style — what are they, exactly? Why do so few people at sea use techniques like these, when they're clearly useful?"
Charlotte Katakuri was eating quietly. He glanced at his sister, then at Izuna, and made the reasonable decision that the old man was choosing to teach and the appropriate response was to not interrupt it.
Izuna handed Katakuri his fish and considered how to begin.
"There was a time before Devil Fruits," he said. "Long before. In that era, humans who wanted power had to find it a different way — by drawing energy from the natural world directly, absorbing it into the body, and converting it into force. Not everyone survived the process. The early experiments killed most of the people who attempted them. It took tremendous loss before anyone understood what the human body could actually hold without rupturing."
He paused to turn the next skewer.
"Once they understood the limits, they built on them. A body filled with natural energy becomes something substantially harder to kill — strong enough to tear apart predators that should have been apex creatures by any conventional measure. That was how the earliest human tribes survived environments that should have exterminated them."
Charlotte Hikaru was listening with the quality of attention she gave things she intended to keep. "And the hand seals?"
"A method. A way of organizing the conversion — taking the absorbed energy and shaping it into a attribute. Fire, water, lightning, earth, wind. The seals act as the conversion mechanism. Later generations called the whole system Ninjutsu, but the name came after the practice. And Ninjutsu itself is a degraded form." He let that sit for a moment. "The original practitioners were working directly from immortal arts. What most people call Ninjutsu today is a simplified inheritance."
He motioned for her to activate the Mangekyō — just a shallow use, he indicated, enough to read the energy movement in his body. She did it carefully, holding the activation at the minimum depth needed.
Through the Sharingan, she could see it: the way natural energy entered him when he formed the seals, flowing from the surrounding environment into his body's channels, gathering in the throat, concentrating, and then releasing as fire at precisely the temperature he had decided on before the seal sequence was halfway complete. The control was total. The process was elegant in a way that purely physical techniques weren't.
She let the Mangekyō recede.
"The Uchiha clan ally," she said. "Where did the eyes come from?"
Izuna was quiet for a moment with the question.
"According to the records on our clan's stone monument," he said finally, "the earliest members were ordinary humans. No different from anyone else. Then one of our women had a union with a being that was not human — what kind of creature, the records don't say clearly. What the records do say is that the child born from that union had red pupils from the moment of birth." He glanced at her. "That child was the first. And from that child came the beginning of what we became."
The first Sharingan-bearing member of the clan had been able to draw on natural energy from childhood without instruction. The hand seals came to him without a teacher. He developed methods for converting that energy into attribute attacks and demonstrated them in combat, and the results were decisive enough that the clan's direction shifted entirely around what he represented.
"The women who bore children with that ancestor were given priority," Izuna continued. "Those children who opened their eyes were centered in the clan's structure. Those who didn't were pushed aside. Round after round of selection, until the Sharingan and the Uchiha name were essentially the same thing."
Charlotte Hikaru absorbed this without speaking. Charlotte Katakuri had stopped making any pretense of only eating.
"The inbreeding created problems." Izuna's voice was level — not judgment, just fact. "A significant number of our people during a certain period were not mentally stable. The clan had power beyond what it had the wisdom to use responsibly. We ruled the weaker peoples of the Mu Continent — the old supercontinent that no longer exists in the same form — by force, and we used that force carelessly. Wars for territory, for population, for resources. Nearly a century of it. The hatred we generated was not abstract."
He sprinkled salt on his own fish.
"The cost was borne by everyone eventually, including us. Casualties accumulated. The children born in the later period of those wars were often deformed — some of them couldn't be raised at all, let alone expected to open their eyes. And the combined forces of every other people on the continent had finally had enough. The clan was besieged."
"So they fled," Charlotte Katakuri said.
"What was left of them fled to an island far enough away that pursuit was impractical. A large island, surrounded by difficult waters, where a small but determined population could fortify itself." He looked at them both. "They never changed the island's name. You know it as Wano Country."
The siblings did know it. They had been there with their mother. They knew it as Kaido's territory — closed borders, black factories, men worked to exhaustion and women without options.
Charlotte Katakuri frowned. "If the Uchiha were that powerful — and we've seen firsthand what even partial Susanoo can do — how did Wano end up under Kaido's control? Something that strong doesn't fall without a reason."
"You've used Susanoo," Izuna said to Charlotte Hikaru. "You know what its completed form looks like — the full armor, the samurai general's figure. That is what the lords of Wano Country modeled themselves on. The title of Shogun — the general — comes from that image. Wano's entire political identity was built around the ideal of what the clan's ultimate technique produced." He paused. "But the clan committed too many sins to be survived by. The inbreeding, the wars, the internal betrayals — they accumulated. What Kaido rules now is the remnant of that legacy, not the clan itself. The clan is gone."
He said it plainly, without grief that was immediately visible.
"Was that deserved?" Charlotte Hikaru asked.
"Yes." No hesitation. "And I say that as someone who carries the name. The Uchiha clan earned its extinction through its own actions, over a very long time, in very many places. The people living in Wano now are better served by whatever comes next than by what came before." He looked at her steadily. "You don't need to dig through all of that history looking for something to redeem. What matters is what you do with what you were born with."
He finished his fish.
Uchiha Izuna was, by his own accounting, an outlier in the lineage he carried — someone who had wanted harmony between peoples badly enough to have spent his life as a consequence of that desire, alone in the belly of an ancient creature while the world outside continued its wars without him. Whether that made him a failure or a survivor depended on who was doing the accounting.
He had not yet decided himself.