Naruto: Strength Through Teaching

Chapter 29: Mastery Level Ninjutsu

Shisui instantly felt that Mutsuki's strength was unfathomable, and it wasn't certain that he had used his full power.

"Is this... the Great Fireball?" Obito stared in disbelief at the enormous fireball towering over his house.

Compared to Shisui's Great Fireball, Obito's seemed like a small fireball, and when compared to Mutsuki's, it was like a faint spark from an unknown source.

Obito found it hard to believe that Mutsuki had just used the same Ninjutsu as him.

"It's really massive. When facing such Ninjutsu, you need to be even faster and stronger," Might Guy exclaimed as he looked up at the gigantic fireball.

The immensely large fireball crashed into the river, evaporating a significant amount of water. Instantly, waves of white mist surged, enveloping the surroundings. After Mutsuki used Wind Release, the mist quickly dissipated.

Mutsuki let out a light breath and smiled at Obito, asking, "What do you think? Is the Great Fireball imposing enough?"

"It's more than enough, looks incredibly powerful," Obito nodded vigorously, thinking that if he could use the Great Fireball with a quarter of Mutsuki's scale, he might win the competition.

Mutsuki thought that the previous attack was indeed powerful, a bit ostentatious, and also quite chakra-consuming, burning a whole thousand points of his chakra.

In normal combat, he wouldn't use a Great Fireball of this scale because, at the same level of battle, it's indeed a bit challenging to hit a person with it.

Mutsuki remembered from his previous life that someone, out of boredom, had apparently counted and astonishingly found that in over seven hundred episodes, regardless of who used the Great Fireball, it had never hit a humanoid creature.

With such an exaggerated record, it's no wonder people called it the "Can't-Hit-Humans Jutsu."

"Then, give it a try yourself," Mutsuki said to Obito.

"Sure," Obito nodded, walked to the riverbank, swiftly formed hand seals, and then blew out a flame.

However, the awkward thing was that Obito's Great Fireball was only the size of two heads, a world of difference from the one Mutsuki had just displayed.

"Obito, it's okay, even if it's small..."

"Guy, spare me the comfort," Obito directly interrupted the casting, indicating that he didn't need that strange consolation.

"Do you know why there's such a big gap between your Great Fireball and mine?" Mutsuki asked.

"Is it because I'm not proficient in its control?" Obito uncertainly replied.

"There are three aspects. First, your chakra control ability is too poor, making it difficult to effectively use the limited chakra you have. Second, your nature transformation practice is lacking, preventing you from transforming a large amount of chakra into flames. And the third is your lack of proficiency in mastering the Great Fireball," Mutsuki summarized.

Immediately, Mutsuki took out a small booklet and handed it to Obito, saying:

"This is some experience I've gathered from practicing the nature transformation of fire attribute chakra. If you read, memorize, and practice according to this booklet, it should help resolve the issues with nature transformation."

Compared to Shisui, Obito's foundation was much weaker, so in the first month, Mutsuki essentially helped Obito rebuild his foundation and also taught him the Great Dragon Fire on the side. That's why he hadn't given Obito the nature transformation manual until now.

If it weren't for the sudden appearance of a training mission, Mutsuki had planned to give it to Obito next semester.

After all, teaching Obito too much at once would be overwhelming for him.

[You have gifted your disciple the Nature Transformation Manual for Fire Attribute Chakra. Due to the disciple's deep appreciation, a large critical reward is triggered. Obtained Fire Release: Intelligent Hard Work (Mastery).]

Mutsuki didn't expect Obito to be quite effective, directly granting him mastery-level proficiency in Fire Release.

Intelligent Hard Work was not an ordinary Fire Release technique; it was a B-rank Fire Release Ninjutsu performed by Kakuzo's Fire attribute mask. Its power was extraordinary, and when combined with Wind Release: Pressure Damage, which he had drawn before, it could instantly create a sea of flames that would burn down an entire forest.

A plethora of training memories appeared in Mutsuki's mind. In an instant, Mutsuki had a sensation, as if he had silently dedicated thirty years of intensive training to mastering Intelligent Hard Work in some unknown corner. Throughout those thirty years, he had focused solely on perfecting this one Ninjutsu, bringing it to a level where he could wield it effortlessly.

"I'll definitely study it every day!" Obito exclaimed, cradling the manual as if it were a precious treasure.

"There's one more thing – let's work on enhancing your chakra control," Mutsuki said with a smile.

Once Obito completed the basic climbing tree and walking on water training, the advanced water-walking exercise plan he had developed on Asuma became relevant.

Although Obito didn't know exactly what Mutsuki had in mind, recalling the painful weekend training sessions made him suspect it was likely another grueling yet highly effective training regimen.

However, now he had to brace himself because this time, he had requested it himself.

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