After Minato left, Mokgetsu looked at the panel displaying the entry-level Flying Thunder God and immediately clicked on the Ninjutsu Mastery Scroll in the items.
Considering that powerful ninjutsu would be hard to master, Mokgetsu seldom used the Ninjutsu Skill Scroll, having only experimented with it once when he first got it, and later used a few on Medical Ninjutsu. The only Ninjutsu Mastery Scroll he had was kept unused.
After opening it, Mokgetsu saw a long list of ninjutsu. He only needed to click on any ninjutsu and then confirm to upgrade it to master level. For ninjutsu already at the master level, it would increase the proficiency.
Mokgetsu ignored the other ninjutsu and quickly found the Flying Thunder God Jutsu, which only had a proficiency of one.
[Ninjutsu Mastery Scroll has been consumed, skill proficiency enhanced — Flying Thunder God Jutsu (Master Level: 1/15000)]
The moment he completed the enhancement, a flood of memories about cultivating the Flying Thunder God surged into Mokgetsu's mind. Problems that he once found profound and incomprehensible suddenly became clear, even giving him a feeling of "Is that all there is to it?".
After achieving mastery level in the Flying Thunder God, Mokgetsu's understanding reached a whole new realm.
Firstly, he could ascertain the possibility of a Return Home Mokgetsu existing. The travel distance of the Flying Thunder God has two major limitations: the range of perception and the amount of chakra.
If Mokgetsu's perception could cover the entire Ninja World, and his chakra was sufficient to use the Flying Thunder God from any point in the Ninja World, then it would indeed be possible to become Return Home Mokgetsu. He could return home to rest after a tiring battle, and then continue to attack unexpectedly.
Of course, with such chakra reserves, probably no one could force Mokgetsu to return home.
Besides the two major limitations, there's actually another factor affecting the Flying Thunder God's range and chakra consumption, which is its proficiency. In a metaphorical sense, it's the realm.
For example, if Mokgetsu were only at the entry level of the Flying Thunder God, moving from point A to B would cost him five thousand chakra, and he couldn't teleport directly from point A to C. However, at a skillful level, moving from A to B might only cost him three thousand chakra, and he could teleport directly from A to C. At the master level, the chakra cost is even less, and the distance is greater.
With such an understanding of the Flying Thunder God, Mokgetsu had some reasonable guesses about why Senju Tobirama died while holding the line instead of using the Flying Thunder God to escape with Shimura Danzo and Sarutobi Hiruzen.
Although Senju Tobirama was a master of Kinjutsu and developed many forbidden techniques, the jutsus he developed were not necessarily perfect. For example, the Reanimation Jutsu could only be used for self-destruction during Tobirama's time, but after improvements by Orochimaru, it could significantly display the abilities of the user when they were alive.
Mokgetsu guessed that the same applied to the Flying Thunder God; during Tobirama's period, the chakra consumption was very high, and even higher when carrying others, so it was basically only used as a trump card in battle.
As for why reanimated Tobirama could easily carry people, it might be related to the infinite chakra from the Reanimation Jutsu.
As for who improved the Flying Thunder God in the current Konoha, it must be Minato.
After using the Mastery Scroll, Mokgetsu did not stop; he used another Ninjutsu Skill Scroll on the Flying Thunder God Jutsu.
[Ninjutsu Skill Scroll has been consumed, skill proficiency enhanced — Flying Thunder God Jutsu (Master Level: 168/15000)]
The proficiency increased slightly, sparking some new cultivation memories in Mokgetsu's mind, though far less compared to the leap from entry to master.
Without hesitation, Mokgetsu used another seven Ninjutsu Skill Scrolls.
He had obtained a total of thirteen skill scrolls, mostly as rewards for his disciples' exams at the Ninja Academy, with a few from advancement bonuses or cultivation tasks.
Mokgetsu had previously used three, leaving him with ten skill scrolls before the recent enhancements.
[Ninjutsu Skill Scroll has been consumed, skill proficiency enhanced — Flying Thunder God Jutsu (Master Level: 1336/15000)]
The proficiency soared by over a thousand in one go, causing many new insights to emerge in Mokgetsu's mind.
Although still far from the next level, this number was not small. Roughly three thousand proficiency is required to move from adept to master level, and with over thirteen hundred, Mokgetsu is already over halfway there.
The last two skill scrolls remained unused by Mokgetsu for future needs.
Content with the thirteen hundred proficiency master-level Flying Thunder God, Mokgetsu, who worked hard to reach the entry level with the help of a small panel, now had one of the highest skill proficiencies among all his abilities. Generally, the proficiency becomes harder to increase after reaching the master level, especially with high-difficulty ninjutsu.
Mokgetsu took out a Kunai, and under the influence of chakra, a black character soon appeared on it — "Master".
He then threw the Kunai and immediately used the Flying Thunder God to teleport a short distance away.
Since the space at home was too small, Mokgetsu went to the training ground for testing.
Supported by lightning attribute chakra-enhanced reactions or the Transparent World, he did not encounter any reaction problems within short distances, making him not much different from Minato.
However, this refers to the Minato during the battle with the Jinchuriki; Mokgetsu hadn't seen Minato's current combat skills, making direct comparisons difficult.
Despite this, from looking at the panel, Minato was making substantial progress in both skill proficiency and chakra.
When Mokgetsu first met Minato, Minato had only forty thousand chakra, which increased to forty-seven thousand six hundred over about half a year, and upon checking today, it's risen to sixty-nine thousand.
This reason is why Mokgetsu wanted to take Nagato as a student. Even before reaching his growth spurt, Nagato had so much chakra, and after turning eighteen, it would undoubtedly surge even more.
Of course, Minato's growth spurt was swift, but cheating Mokgetsu's growth was even faster.
[Name: Habu Mokgetsu]
[Chakra: 104400]
When he first met Minato, Minato's chakra was forty thousand while Mokgetsu's was just over four thousand. Now nearly two years later, Mokgetsu's chakra had successfully broken into six digits.
Chakra was once Mokgetsu's weakness, but now, in all of Konoha, his chakra is among the higher levels.
Although this chakra amount still wasn't quite enough for Mokgetsu's strategies, it was a vast improvement from before.
After completing his test, Mokgetsu returned home to reorganize his upcoming plans.
Obito's life mission points were approaching twenty, warranting a push to earn the reward. Completing the Yang Seal and developing supportive ninjutsu was a daily must-do, researching the Breath of Sun was relatively important, and lastly, figuring out how to become the perfect mentor for Nagato to lead him to "Chakra Tons".
PS: My family insists on setting me up on blind dates, which is a bit annoying, so today's chapter is slightly shorter. Took it easy for the day, but I've organized the outline and will definitely produce at least eight thousand words tomorrow. Feel free to criticize if it's less.