Chapter 8: Gold Coins Exploded
"The difficulty of this Ninjutsu lies in compressing a large amount of chakra into the shape of a fire dragon in an instant," Mugetsu explained while demonstrating the technique for Shisui.
Since recently acquiring proficiency in Chakra Nature Transformation, Mugetsu took the opportunity to explain various techniques related to it as well.
"I see. I think I'm starting to get it," Shisui nodded, preparing to try it himself.
His hands quickly formed the seals, chakra surging from within. He compressed it and shaped it carefully.
"Fire Release: Great Dragon Fire Technique!"
Opening his mouth, Shisui released a fire dragon about a meter tall. It soared into the air, spun once, then dropped into the river, steam hissing into the air.
Clap clap.
Mugetsu smiled, clapping for him.
"I thought you'd need a few more tries to get it right. I underestimated your talent."
He was genuinely surprised. Shisui hadn't even activated his Sharingan, yet he was able to learn a B-rank Ninjutsu so quickly. Was this the power of an S-rank genius?
"It's because Teacher Mugetsu teaches so well," Shisui replied humbly.
He didn't deny that he learned faster than most, but he truly believed Mugetsu was a diligent and clear instructor.
Other than the first time—when Mugetsu had shown off with just one hand seal—he had used full seals during every demonstration, even slowing them down to explain key points in detail.
"I can't say I've mastered it yet. I can just barely use it," Shisui added, thinking back to Mugetsu's earlier demonstration. The sheer size and number of dragons Mugetsu produced still seemed far out of reach.
"Then I'll demonstrate the perfected version a few more times," Mugetsu said with a smile.
He was satisfied with Shisui's humility and diligence. And judging from the increasing chakra values on the system panel, Shisui had clearly been training at home too.
Time passed quickly when focused. While immersed in Mugetsu's instruction, Shisui suddenly noticed how bright the flames of his fire technique looked.
Only then did he realize the sky had already darkened.
Could Teacher Mugetsu's voice be some kind of Genjutsu? he thought briefly. It makes me forget time is even passing...
"Teacher, I'm heading back now," Shisui said, bowing slightly.
"I've compiled my notes on Chakra Nature Transformation. Take this and review it when you have time," Mugetsu replied, handing over a small booklet.
Shisui paused, then accepted the booklet and bowed again, sincerely.
He didn't say much, but his respect for Mugetsu deepened. In only four days, Mugetsu had given him everything he needed without hesitation. No secrets, no holding back—the important things were always taught first.
As Shisui's silhouette disappeared into the distance, Mugetsu smiled.
As expected of his most valuable disciple—the gold mine had paid out once again.
[You gifted your disciple a Nature Transformation cultivation manual. Due to the disciple's immense gratitude, the reward was critically boosted. Acquired: Wind Release – Pressure Damage (Proficient).]
A flood of knowledge rushed into Mugetsu's mind. The structure, techniques, and combat strategies of Wind Release: Pressure Damage became clear in an instant, along with foundational Wind Release Nature Transformation skills.
He was more than satisfied.
Wind Release: Pressure Damage was one of the most powerful techniques in its class. Its wide area, high destructive power, and compatibility with Fire Release made it extremely useful.
Even more importantly, the Wind Release Nature Transformation would be critical for advancing the Rasengan toward Rasenshuriken.
Originally, he had intended to build a Fire-based Rasengan first, but now that Wind Release was available, there was no doubt where his focus would go.
After several days of careful observation, Mugetsu had begun to understand how the disciple feedback system worked.
The rewards were based on two things:
The quality of the item given.
The disciple's gratitude for it—this had greater influence.
On the second day, he gave Shisui a snack, and the system rewarded him with ten shuriken.
On the third day, he brought homemade food, and the system gave him fifty chakra points.
Both were food, but the latter had more "heart" in it—and Shisui appreciated it more.
Having figured this out, Mugetsu now had a new plan: get Shisui to trigger a major reward. Tomorrow, he would check the Ninja Academy records to find Shisui's birthday.
---
The fifth day since arriving in the Naruto world.
Mugetsu originally had only one class today, but a third-grade teacher had an emergency and needed someone to substitute. Naturally, Hayate volunteered without hesitation.
Two classes. One gave him twenty chakra points.
The other granted him Fire Release: Great Fireball Technique.
It was the first time he received a duplicate Ninjutsu—but instead of wasting the reward, the system directly boosted his mastery of it.
If this were a game, he'd now have a +1 Enhanced Great Fireball Technique.
"Teacher Hayate, you're too easygoing. If you keep accepting extra classes like this, everyone will start asking you for favors," Aya warned.
Mugetsu thought to himself, Isn't that perfect? I'd love that.
"We're all colleagues. I don't mind helping. And… I genuinely enjoy teaching," Mugetsu replied with a warm smile.
Aya was left speechless. Looking at his expression, she couldn't even accuse him of being insincere.
She found it a bit surreal. Were there really people this... wholesome? Covering classes didn't increase his salary—it was practically working for free.
---
The weekend arrived.
Just like his previous life, the Ninja Academy had classes Monday to Friday, with weekends off.
At eight in the morning, Mugetsu brought Obito and Might Guy to the secluded training spot near the southern river—the same one he used to train Shisui.
The "special training" began.
"Why do we have to wake up so early on a holiday?" Obito groaned, slumped over the desk Mugetsu had prepared in advance.
"Early? It seems fine to me," Might Guy replied, scratching his head in confusion.
Mugetsu passed out freshly printed test papers to the two.
These were custom-made, tailored to their learning progress. After just five days in class, Mugetsu couldn't use last year's monthly exam.
And for their current level, there was no need to include difficult questions. Just helping them secure the easy points would be enough to pass.
"Teacher Mugetsu, this is…"
Not long after, Shisui arrived at the training site, preparing to cultivate. Seeing Obito and Guy struggling over test papers, he looked confused.
"They're fourth-graders. I'm tutoring them. Go ahead and train—it won't get in your way," Mugetsu explained.
Shisui's arrival wasn't a coincidence—Mugetsu had specifically called him last night.
Why?
Because he thought it would be hilarious for Obito and Might Guy to be stuck doing schoolwork while a younger classmate practiced advanced Ninjutsu.
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