In a modest wooden house on the outskirts of Konohagakure, a white-haired boy stared blankly at his reflection in the mirror.
"I can't believe it... I actually transmigrated to the world of Naruto."
Jiraiya pinched his face in disbelief, his expression one of mixed shock and curiosity.
Moments ago, he had been watching the epic battle between Jiraiya and Pain on his screen. But out of nowhere, a blinding white light shot out from the screen and struck him. The next thing he knew, he was in the world of Naruto, inhabiting none other than the body of Jiraiya himself.
It didn't take long for him to accept the reality of his transmigration.
[Ding! The God-Level Sign-In System has been bound.]
A mechanical voice suddenly echoed in his mind.
Jiraiya wasn't surprised. After all, a system was practically standard issue for transmigrators. Before arriving here, he had read countless novels with similar setups.
"What kind of abilities do you offer?" Jiraiya asked, his tone brimming with anticipation.
This world was incredibly dangerous. Without sufficient power, one could meet their end at any moment. Jiraiya, despite his legendary future, had started off as a weakling—a well-known loser among his peers.
Unfortunately, he had been thrown into Jiraiya's early years. At this point, the young Jiraiya had graduated from the Academy only two years ago. He had recently become a student of the Third Hokage, alongside Orochimaru and Tsunade. However, he was currently just a Chūnin—and a weak one at that.
So naturally, he was eager to see what the system could do.
[This system allows the host to sign in once every seven days to receive random rewards.]
[Rewards include various jutsu, ninja tools, Kekkei Genkai, and more.]
[Host, would you like to perform your first sign-in now?]
The mechanical voice finished its explanation and then posed the question.
"Sign in!" Jiraiya replied without hesitation.
[First sign-in successful. Rewards: Sage Body and Seal Proficiency for all jutsu below S-Rank.]
(T/N: Don't take the term "Sage Body" too literally—it doesn't refer to the body of the Sage of Six Paths himself. Instead, think of it as an enhanced version of his physical attributes.)
The system's announcement left Jiraiya stunned.
"Holy crap! That's insane!" he exclaimed, thoroughly impressed by the system's generosity.
Immediately, he felt a warm current flowing through his body, coursing through every fiber of his being. It felt as though his body was being fundamentally transformed. The sensation was both invigorating and comforting.
Jiraiya could distinctly feel the chakra within him growing exponentially.
In the Naruto world, lineage was everything. Those blessed with powerful bloodlines could wield far greater power than ordinary ninja. The Uchiha clan, for instance, was leagues above average due to their Sharingan.
The Sage Body was an incredibly rare and powerful bloodline inherited from the Sage of Six Paths himself. It granted immense vitality and enormous chakra reserves. Senju Hashirama, known as the God of Shinobi, owed much of his unparalleled power to his Sage Body.
Fully mastering the Sage Body granted chakra reserves rivaling those of a tailed beast, along with extraordinary vitality and regenerative capabilities. Even if bisected, one could heal and survive—an utterly overpowered ability.
As for the reward of Seal Proficiency for jutsu below S-Rank, it was equally game-changing.
Every jutsu required precise hand seals to activate, and the more powerful the technique, the more seals it demanded. Mastery of hand seals determined how quickly a ninja could execute a technique.
With the system's gift, Jiraiya could now flawlessly execute any jutsu below S-Rank at incredible speed.
The fastest hand seal practitioner in Naruto lore, Uchiha Itachi, could perform seven seals in a single second, allowing him to overwhelm opponents with rapid-fire techniques.
Jiraiya's newfound proficiency allowed him to achieve four seals per second—a speed that could further improve with practice.
"With the Sage Body and Seal Proficiency, I just need to learn some powerful jutsu. It won't be long before I reach the level of a Jōnin. Once that happens, I'll have a real chance to survive in this world," Jiraiya said, clenching his fists with determination.
He had always admired Jiraiya as a character but lamented his tragic life—always falling just short of achieving his goals.
If he was now Jiraiya, he vowed to rewrite that story. The first step was to grow stronger.
As the warmth in his body subsided, Jiraiya flexed his muscles and felt a noticeable increase in his strength and agility.
"It seems the Sage Body also provides a massive boost to taijutsu training," he mused.
Deciding to test his abilities, Jiraiya stepped out into his backyard—a spacious area complete with a training ground.
The training ground, constructed by his parents, was well-equipped but clearly neglected, as the tools were covered in a thick layer of dust.
"Slacking off like this... No wonder I was at the bottom of the class," Jiraiya muttered, shaking his head.
In his inherited memories, the original Jiraiya rarely trained. Instead, he spent his free time lurking around the women's bathhouse, hoping to catch a glimpse of the unsuspecting bathers.
His lecherous antics had earned him the nickname "Little Pervert," and even the older women in the village avoided him like the plague.
But now, things were going to change.
"Earth Style: Swamp of the Underworld!"
Jiraiya swiftly performed a series of hand seals, slamming his palms onto the ground. Chakra surged into the earth, transforming a patch of solid ground beneath a large boulder into a murky swamp. The boulder sank rapidly into the quagmire.
"Fire Style: Flame Bullet!"
Without missing a beat, Jiraiya performed another series of seals. He refined his chakra into oil, ignited it with Fire Release, and expelled three blazing projectiles from his mouth. The flaming bullets struck the sinking boulder, scorching it.
...
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