Limited Ninjutsu System

Land of Fire

Konoha Ninja Village

"Haah, haah... I'm exhausted."

With ragged breaths, Feng Yao collapsed onto the ground, utterly drained of chakra. Sweat soaked his back. He had just been practicing the E-rank Clone Technique to prepare for the Konoha Ninja Academy graduation exam, and he could now make three clones.

Feng Yao wasn't from the world of Naruto. He had arrived from Earth by accident. Back on Earth, he'd been an ordinary office worker in his twenties.

Having grown up in China, he'd found it difficult to fit in after arriving in the world of Naruto. Fortunately, he'd crossed over as a child, so no one could tell anything was amiss.

As a transmigrator, he was a die-hard fan of the Naruto anime and knew all the major plotlines by heart. But unlike other transmigrators...

He hadn't been reborn into any of the great clans—the Uzumaki, Hyuga, Uchiha, or Senju. That had always frustrated him.

After all, in the world of Naruto, you had to belong to a great clan like the Uchiha or Hyuga to get your hands on the Sharingan, Byakugan, or Sealing Techniques.

Even the amount of chakra you had was closely tied to your background. For example, members of the Uzumaki Clan were born with more chakra than most.

He'd been born into an utterly ordinary family. His father was a Chunin, and his mother was a civilian. He had no powerful Kekkei Genkai, no incredible Sharingan, nothing. With a face as forgettable as his, he was obviously destined to be cannon fodder.

Though Feng Yao knew plenty of the Naruto world's secrets, he wasn't strong enough to reveal them. If he did, he'd probably be silenced the next day. That was the tragedy of being weak.

What man didn't have dreams? Feng Yao had naturally wanted to make a name for himself in the Shinobi World. But he could barely manage to learn a few E-rank techniques. How could he talk about punching the Uchiha and kicking the Otsutsuki?

Fortunately, hard work could make up for a lack of talent. Feng Yao was one of the hardest-working students at the Ninja Academy. After all, if he really ended up as nothing more than a Genin in this world, how could he call himself a transmigrator?

Clone Technique

Escape Technique

Substitution Technique

Transformation Technique

Those were all the techniques Feng Yao had mastered so far. Yes, that really was all. When he'd watched the anime, he'd thought you just made a few hand signs, shouted the name of a technique, and it happened.

Reality was cruel. Learning ninjutsu was incredibly difficult. First, you had to learn to mold chakra. Second, you had to master the hand signs and the amount of chakra to channel.

Feng Yao was twelve, but he'd only mastered a few E-rank techniques. Still, he'd thoroughly learned the Academy's foundational lessons. His techniques might not be powerful, but they'd at least be enough to graduate.

He silently resolved to find a teacher and learn some higher-level techniques after they were assigned to teams. Then he got to his feet and headed toward the Ninja Academy.

"Naruto, you little brat! Stop right there!"

"Hahaha! You guys are such a pain!"

"How could you do something so despicable?"

Several figures raced across the rooftops, darting from building to building before quickly vanishing from sight. Feng Yao watched Naruto in the distance, the protagonist of Naruto.

He understood that Naruto only wanted to get everyone's attention. It wasn't until he'd come to the world of Naruto that he'd truly felt how coldly everyone in the village treated him.

To be honest, even Feng Yao's parents in this world had warned him to stay away from Naruto, saying he was the Demon Fox. Feng Yao had almost burst out laughing. Having watched Naruto, he despised that kind of thinking.

The Fourth had given his life to save a bunch of ungrateful, laughable people. Feng Yao got along well with Naruto and had deliberately made an effort to befriend him.

After all, if things really went badly for him in the future, he'd have someone powerful to lean on.

"Hey, Naruto!"

"Whoa! Iruka-sensei!"

Seeing Naruto get caught by Iruka-sensei while using the Straw Cloak Invisibility Technique, Feng Yao went over to say hello.

"Iruka-sensei, Naruto, what are you doing?"

"Uh..."

Naruto's face brightened when he saw Feng Yao, and he started to greet him. Then he noticed Iruka's face, already dark with anger.

The words stuck in his throat. Feng Yao glanced toward the statues of the Hokages who had led the village. The graffiti on them was Naruto's handiwork.

This was where the legend of Naruto's life began. Feng Yao's arrival might bring a small change to Naruto's world—or it might be no more than a speck of dust, or even the start of a storm.

"It's class time! Get back to class, all of you! Feng Yao, that includes you!"

So Feng Yao and Naruto returned to their classroom at the Ninja Academy. Since he already knew what was coming, Feng Yao had mastered the Clone Technique they'd need for the graduation exam.

He'd made a point of practicing it during this period, so becoming a Genin and getting his Forehead Protector was all but assured. Feng Yao looked around. The classroom was filled with people who'd become famous in the Shinobi World.

Sasuke Uchiha, Shikamaru, Sakura Haruno, and others. If he didn't work hard enough, they could easily beat him. He might not even qualify as cannon fodder.

"Naruto, do you realize you've already failed to graduate twice? This isn't a joke, you idiot!"

Naruto turned away in disdain, looking as if he couldn't care less. Even Feng Yao couldn't help laughing at him.

Who could have guessed that this guy, who couldn't even use the Clone Technique yet, would one day be powerful enough to turn the entire Shinobi World upside down?

"Listen up, everyone! Today's test is on the Transformation Technique. Even if you've already passed, you're taking it again."

"Whaaat?!"

"Thanks to you, Naruto!"

"What did I do?"

Everyone protested. Feng Yao rubbed his nose. The Transformation Technique was one of his best.

There weren't many people in the class who could beat him at the basic techniques. With his hands clasped behind his head, he leaned back in his chair and watched the others take their tests.

"First up, Sakura Haruno."

A pink-haired girl stepped forward. Naruto's gaze seemed to get drawn to her, too. The girl was Sakura Haruno, a character in Naruto whose fans were divided over her.

Behind that cute exterior lurked a violent heart. Naruto was still so young. Why not Hinata?

As Feng Yao massaged his sore arm from training and waited for Iruka to call his name, a clear, ethereal voice suddenly sounded in his mind.

"Ding! System binding successful. Congratulations, host. You have bound the Ninjutsu Limitation System. Would you like to activate it now?"

What? A system? Was this real? After twelve years in the Naruto world, his big break had finally come. He'd thought he was just an ordinary slacker.

He'd even been so afraid of dying that he'd tried to cozy up to the protagonist. At long last, he'd gotten his cheat!

Feng Yao's fingernails dug deep into his palms as he replied silently.

"Activate."

"Congratulations, host. Activation successful. Please allow me to explain the power of this system. The system can randomly grant the host mastery of a style or rank of ninjutsu from the Shinobi World. For example, it could allow the host to instantly master all A-rank ninjutsu."

"When the system grants the host A-rank ninjutsu, the host may only use A-rank ninjutsu to fight and complete missions. The host cannot use any other ninjutsu, senjutsu, or genjutsu."

"The selection will change every six months. Since the host has just activated the system, a selection has been made automatically. The host can now use all senjutsu that has appeared in the Shinobi World, and may only use senjutsu. The host will be unable to perform any ninjutsu or taijutsu outside of senjutsu."

"Really? I can use all senjutsu? Wait, but I don't have Senjutsu Chakra."

Feng Yao was thrilled. He'd only been able to learn E-rank ninjutsu, and now he could master every senjutsu in Naruto. It was like a homeless beggar winning a hundred million overnight.

But once he calmed down, he remembered how things worked in Naruto. To use senjutsu, you needed Senjutsu Chakra and had to enter Sage Mode. Senjutsu Chakra could only be formed by absorbing Natural Energy and fully blending it with your physical and spiritual energy.

Entering Sage Mode also required an enormous amount of chakra and training at one of the Three Great Sage Lands. With the little chakra he had, there was no way he could control Natural Energy right now. He'd just become one with nature and die.

Only a handful of people in Naruto could enter Sage Mode. Even Jiraiya couldn't achieve perfect Sage Mode. That showed how hard it was to master.

"As a powerful system, I cannot give the host too much help if I am to make him stronger. You have already mastered all senjutsu, but you must find your own way to obtain Senjutsu Chakra and enter Sage Mode. The system will reveal the locations of the Three Great Sage Lands through future missions."

"You've got to be kidding me! What good is mastering senjutsu if I don't have Senjutsu Chakra to use it? My chakra isn't even enough to matter! And you think you can just walk into the Three Great Sage Lands? What is this, your house? Was this system nine yuan with free shipping? Aren't you embarrassing the other systems?"

"Warning: if the host insults this system again, the system will carry out an execution."

"Ahem. I was joking. Isn't there another way? Since this is my first time binding with a system, don't I get a newbie gift pack?"

"No. However, the system will assign missions to improve the host's strength. These missions will also include increasing the host's chakra."

"Well, that's not too bad, I guess. Wait... I can't use any ninjutsu except senjutsu now. What about the techniques I've learned?"

"Does the host have a problem with his memory? Of course you cannot use them."

At that, Feng Yao felt as if he'd swallowed a spiky booger.

"Come on, really? I can't use senjutsu, but I'm not allowed to use ninjutsu either? This is the first time I've heard of a system making someone weaker!"

"Fine. Given the host's poor talent, aptitude, and strength, the system will offer one more assist. The host's first mission is to steal the Scroll of Seals. The deadline is one month. Reward: the host's chakra reserves will increase tenfold. Slogan: Young man, follow the path the protagonist once walked."

Reading the mission and reward, Feng Yao gritted his teeth in fury. This was worse than being executed.

Steal the Scroll of Seals? What was the Scroll of Seals? It was a forbidden scroll sealed away by Hashirama himself and guarded under heavy security.

Naruto had only gotten his hands on the scroll early on because the Third had allowed it. There was no way Naruto could have pulled off something even an elite Jonin might struggle to do. And now Feng Yao couldn't even use the basic techniques he'd learned, which made him weaker still.

"So what happens if I fail the mission?"

"Failure to complete the mission will result in immediate execution."

"..."

Feng Yao silently cursed the system a few more times. Then he saw that Naruto was up next. Watching him, Feng Yao suddenly had an idea. Maybe he didn't have to steal the Scroll of Seals by himself.

"Next, Naruto!"

"No problem! Sexy Technique!"

Naruto transformed into a gorgeous blond woman with twin tails. Iruka's nose started gushing blood.

That technique could even take down the Hokage and the Otsutsuki, who were beyond its reach. Watching Naruto's Sexy Technique, Feng Yao wondered whether he should ask Naruto to teach him sometime. When you were out in the world, it never hurt to have an extra trick up your sleeve.

"Host, please immediately stop having such lewd thoughts."

"Shut up, useless system. I'm purely thinking about improving my strength. Don't you know this technique can even defeat the Hokage?"

"Even if the host learns it, he will be unable to use it."

"...Fair enough."

While Feng Yao was still arguing with the system, Iruka had already finished scolding Naruto. He called Feng Yao up next.

A thousand horses seemed to be galloping through Feng Yao's mind. He'd always been able to perform the Transformation Technique with ease, but the system had just screwed him over.

"Feng Yao, come demonstrate the Transformation Technique. Naruto, watch and learn from Feng Yao!"

"Well... actually..."

Feng Yao felt as though he'd never moved his feet so slowly.

Then he remembered the graduation exam in a few days, where they'd be tested on the Clone Technique. Now he couldn't even graduate. Was he, a dignified transmigrator, really going to fail the Genin exam?