Chapter 94: Chapter 094: Flying Thunder God Seal
The Flying Thunder God Technique (Hiraishin no Jutsu) is a high-level space-time ninjutsu developed by the Second Hokage, Senju Tobirama—a man renowned for his brilliance in creating forbidden techniques. Among all of his creations, Hiraishin stood out as a technique that defied traditional movement altogether. It did not merely make the user fast; it rendered the very idea of distance irrelevant.
This jutsu allows the user to teleport instantaneously to any location marked with their unique formula—a special fūinjutsu. Once inscribed, the mark persists indefinitely unless forcibly erased, allowing the user to move to that point at will, regardless of intervening obstacles. Whether it was across the battlefield or to a distant village, the Flying Thunder God turned the shinobi into a literal flash of light.
Wherever the user's body can make contact, the formula can be placed—on the ground, walls, tools, or even the enemy themselves. Once marked, the enemy is essentially cursed, their fate sealed with the stroke of a brush. Few could avoid death once they bore the seal of the Hiraishin. It was this terrifying potential that made Tobirama's technique legendary, and what earned Namikaze Minato his title as "Konoha's Yellow Flash".
However, this wasn't a technique just anyone could learn. The reason Minato succeeded was due to his extraordinary spatial awareness, chakra control, and theoretical understanding of fūinjutsu. He did not merely copy Tobirama's technique; he redefined it, innovating upon it with the unique kunai-based system that allowed him to decimate entire armies in the blink of an eye.
In simplified terms, the Flying Thunder God Technique functions by placing a sealing formula onto an object—typically a custom-designed tri-pronged kunai. This kunai becomes a spatial anchor. When the user forms the necessary hand seals and channels chakra, they can transport themselves instantaneously to that marker, as though summoning themselves.
This process is akin to a Reverse Summoning Technique (Gyaku Kuchiyose no Jutsu), where instead of calling a creature to oneself, the user brings themselves to a pre-marked location.
While it may sound simple in theory, the difficulty of Hiraishin lies in mastering the intricacies of the space-time dimension, fūinjutsu, and the enormous chakra control required to execute the teleportation precisely. It's not simply a matter of raw power—one must possess finesse, intellect, and an intimate understanding of how chakra interacts with spatial constructs.
In contrast, traditional Summoning Techniques (Kuchiyose no Jutsu) rely on a contract signed with a summoning beast. When the user performs the required seals and channels chakra into their hand, they can summon the creature across space to their side. This technique becomes easier once the contract is established. But with Hiraishin, the shinobi essentially makes a summoning contract with themselves, invoking their own body through space using a personally crafted seal.
Senmei Asahi, a rising shinobi whose path had crossed with Minato's, had become fascinated by this technique. Asahi was not born into a prestigious clan, nor did he carry a famous bloodline. But what he did possess was unyielding willpower and an insatiable hunger for understanding the mechanics of chakra.
It was this curiosity—and his encounters with Orochimaru's lab archives—that planted the first seeds of interest in fūinjutsu within him. There, among forbidden scrolls and dissected theories, Asahi stumbled upon notes that hinted at the theoretical structure of the Flying Thunder God Technique.
Later, under the guidance of Namikaze Minato himself, Asahi began his serious study of the jutsu. Minato, sensing the boy's sincerity and potential, offered to train him. The first step: learn to inscribe the Hiraishin formula—a task far more challenging than it sounded.
Where Minato could simply imprint the seal with a flick of his finger using finely controlled chakra, Asahi had to manually draw it using ink and paper, carefully copying each line and curve until it became second nature. The formula was complex, more art than mathematics, and it had to be drawn with extreme precision. Even the slightest mistake would render the entire seal inert.
Each night, Asahi would stay up in the training field, the moonlight his only companion as he repeatedly traced the formula. Scrolls littered the ground, each one bearing corrections, smudges, failures. But he did not falter.
A month later, standing before Minato, Asahi completed the formula unaided.
"Asahi, I can't believe how quickly you picked this up!" Minato said, awe in his voice.
"Minato-senpai," Asahi replied, scratching the back of his head, "It's all thanks to your experience. I just followed the trail you blazed. If I had started from zero… I doubt I could've ever reached this far."
He was being humble, but Minato could see the truth: Asahi had talent—raw, sharp, and growing.
Asahi reflected on how much easier it was to walk a path that had already been paved. It was like the Rasengan: Minato spent years inventing it, but Naruto—his son—learned it in mere days. Once the groundwork is laid, progress becomes exponential.
It's like the invention of the light bulb. Once that first successful filament glowed, replication became accessible. But to reach that first spark required trials, failures, perseverance—and a kind of genius.
Minato was that kind of genius.
Asahi? He was a torchbearer, walking the path forged by legends—but walking it with pride and purpose.
He also knew he wasn't yet among the true prodigies. Hatake Kakashi, for instance, had already developed his original technique, Raikiri, by Asahi's age. Meanwhile, Asahi still struggled to devise his own earth-style technique.
Creating new jutsu wasn't just about chakra; it was about insight. You needed vision, theory, and creativity. Simply knowing the "how" wasn't enough—you had to understand the "why".
In that respect, he still lagged behind the true geniuses born into shinobi bloodlines and legacies. But he had something they didn't—determination fueled by nothing but his own drive.
"I really don't know if there's anything you can't learn." Minato chuckled.
"You're being too generous, senpai." Asahi replied, embarrassed. "Without your help, I'd still be stuck trying to draw a stable seal on my kunai."
Currently, Asahi could only perform Flying Thunder God Technique using a prepared scroll or wrapping paper with the formula attached to a kunai's hilt. It was primitive compared to Minato's seamless style.
"Haha! Don't worry. With practice, you'll engrave the seal in real-time with chakra alone," Minato reassured him. "It takes time. Once your chakra flow is perfectly attuned, it becomes instinct."
"Understood," Asahi said, clenching his fists.
Minato's expression turned serious. "Now comes the hard part. You have to master teleporting yourself to the marked location using hand seals. Don't take it lightly. This is the final wall before true mastery."
He tossed a kunai into the air. In a flash of golden light, his body vanished—reappearing beside it with not even a whisper of movement.
"That's the true essence of the Flying Thunder God Technique," Minato said.
"I understand. Thank you, Minato-senpai," Asahi bowed deeply.
"Keep practicing. I've got a mission tomorrow—time to rest up," Minato said with a warm smile.
"Goodnight, senpai," Asahi waved, watching him disappear into the dusk.
Alone once more under the darkening sky, Asahi gazed up at the stars.
'If I ever get the chance,' he thought, 'I'll save Namikaze Minato from the Nine-Tails' attack. If he survives, maybe… maybe the future of Konoha won't have to fall into darkness.'
As the wind rustled the trees around him and the stars glittered above, Asahi picked up a kunai, his eyes burning with resolve.
The future wasn't written yet—and perhaps, with Hiraishin in his hands, he could rewrite it.
*****
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