Masahiko Uzumaki returned to his guest room, still haunted by Mito’s meme-worthy expression—“You’d have to be an idiot to believe that.”

  Just earlier, when questioned by Mito, Masahiko had blurted out a weak excuse: “Your grand-uncle is a genius.” Judging from her face, she wasn’t buying it.

  “Honestly, you’d have to be nuts to believe that…” Masahiko muttered to himself.

  “Whatever, not gonna think about it anymore. I’ll sleep on it.”Thanks to the “surprise” from the system, he hadn’t gotten a good night’s rest in two days. The moment he shut his eyes, he didn’t open them again until the afternoon.

  “Ugh, starving... Why didn’t anyone call me for lunch? Wait, did I skip breakfast? And I didn’t eat st night either… Wait, yesterday’s lunch too…”It finally hit him—he hadn’t eaten in nearly twenty-four hours.

  After stepping out and asking a few members of the Senju cn, Masahiko found out they only ate two meals a day.

  “Oh, right. This is the Warring States Era. Lunch wasn’t even a thing back then. Come to think of it, the Uzumaki cn’s three-meal habit probably started because of me when I was a kid…” he murmured.

  With no other choice, Masahiko went to look for Tobirama. After asking around, he learned that Tobirama was at Training Ground Four.

  A quick note about training grounds in this era: most major cns had four of them.Training Ground One was the rgest, reserved for jonin-level shinobi to practice rge-scale or high-damage jutsu.Ground Two was next, accessible to genin who’d already seen battle.Ground Three was mainly for young genin who hadn’t yet been to war—usually under 12. Anyone older had already been thrown onto the battlefield. Even Hashirama, the cn head’s golden boy, had gone to war at age eight.

  Ground Four, though, was for pre-genin kids—the cn’s future. Security here was tight, and the Senju’s second elder practically lived there.

  “Training Ground Four, huh? Tobirama’s probably teaching the kids. Guess I’ll take a look.” Masahiko mused as he walked. “Didn’t the Uchiha have some big incident here a few years back? The Hyuga used their Byakugan to ambush the kids, right? Half of them were wiped out. I think Madara’s little brothers died there…”

  “Shame I wasn’t around. Could’ve been another major ‘Naruto world’ event: ‘The Death of Madara’s Brothers’ or something.” He chuckled to himself. “But man, the Hyuga really stirred up a hornet’s nest. That feud with the Uchiha’s not going anywhere now.”

  “The Uchiha went berserk, hunted the Hyuga down. Even with the Senju trying to mediate, the Hyuga got hammered so badly they basically vanished from the battlefield.”

  “Warring States… nothing but grudges and blood. Konoha probably won’t be founded for another twenty years…”

  Lost in thought, Masahiko arrived at Training Ground Four.

  Tobirama was in the middle of teaching shuriken throwing. When he saw Masahiko approach, he paused immediately.

  “Kids, this is Masahiko Uzumaki, grand elder of the Uzumaki cn. His shuriken technique is way beyond mine. Let’s have him give you a lesson,” Tobirama announced.

  “Isn’t that a bit much…” Masahiko protested.

  “No need to be modest. Let the skilled lead.” Tobirama gestured respectfully.

  “You know, your second elder’s face just turned stormy,” Masahiko said with a grin, eyeing the elder.

  The Second Elder: “...”If Masahiko hadn’t been there, he might’ve taught Tobirama a lesson about respecting elders—with his fists.

  Seeing Tobirama looking awkward, Masahiko decided to roll with it. “Fine, I’ll give a quick demo of a special shuriken throwing technique.”

  He walked up to the target, took a stance, and unleashed a perfect move straight out of Uchiha Itachi’s ‘Teach-My-Little-Brother’ handbook. A sparkle lit up in the kids’ eyes.

  Masahiko was just about to do a second, fshier move when his stomach growled loudly.

  “Yeah… I’m not cut out for cool entrances,” Masahiko sighed dramatically, staring up at the sky with mencholic fir.

  “Uh… Great-Uncle, you must be starving after skipping meals all day. Let me take you to the mess hall,” Tobirama offered, trying to save face.

  “I’ll take over here,” the second elder quickly said, worried Masahiko would corrupt the next generation with nonsense.

  “Come on, Great-Uncle. Once you’ve eaten, I still have some jutsu I want to ask about,” Tobirama said as he led him away.

  “Back to life!” Masahiko sighed contentedly after a hearty meal. “You know, Tobirama, I almost went two days without food.”

  “Yeah… I figured.” Tobirama stared at the pile of empty ptes in stunned silence. That was enough food for four people.

  “Alright, since you want to learn my shuriken-substitution combo, I’ll teach you. Whether you can learn it is up to you,” Masahiko said casually.

  “That’s not quite it, Great-Uncle. I’m trying to develop a space-time ninjutsu—by inscribing space-time markers on kunai, I want to achieve long-distance teleportation,” Tobirama expined.

  “Flying Thunder God Technique, huh…” Masahiko muttered under his breath.

  “Flying Thunder God? That’s a good name,” Tobirama said, catching the whisper.

  Masahiko: “...”Well, great. There goes my naming rights…

  “Your idea’s goal is simir to my shuriken-substitution trick, but mine has a long cooldown. That’s where Flying Thunder God has the edge—no such limits,” Masahiko commented.

  “Cooldown?” Tobirama blinked, confused.

  “It’s the time between uses. My version takes about thirty seconds. It’s a built-in limitation, nothing I can do,” Masahiko expined.

  “But I can give you some advice…” Masahiko leaned in.

  He didn’t have any actual space-time talent, but with his knowledge of Naruto lore, he had a ton of suggestions—tagging jutsu on people, teleporting objects, you name it. Tobirama was soon wide-eyed, eating it all up.

  “Thank you, Great-Uncle. I’m going to go experiment now—we’ll talk more tomorrow!”Tobirama, now brimming with ideas, abruptly left to begin testing them.

  With nothing else to do, Masahiko wandered off to check in on Mito. At least he’d have something to say to his great-nephew, the cn leader, when he got back.

  Afterward, he visited Training Ground One, found a quiet spot, and began practicing his new jutsu—Wind Release: Rasenshuriken.

  The next few days passed in a blur of eating, sleeping, brainstorming with Tobirama, developing the Rasenshuriken, and checking on Mito.

  A week ter, Masahiko looked down at the small, swirling Rasenshuriken in his palm and smiled with satisfaction. He knew that with more chakra output, he could replicate Naruto’s full-scale version. But considering the toll it took on the user’s arm cells, it’d have to stay a st-resort move.

  With that, Masahiko found himself even more idle.

  Another week passed, and he finally decided to say farewell to the Senju and return to the Uzumaki.

  Just then, a familiar system prompt fshed across his vision:

  “You have witnessed and participated in a major Naruto world event—the development and naming of the Flying Thunder God Technique. You have earned 5 Witness Points.”

  Wait… That counts?!

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