Starting with the Uchiha clan, they began cultivating demonic arts.

Chapter 53 Pre-Battle Training

After spending some time in this dark space, Uchiha Touyu ultimately decided against sacrificing the black energy in his hand.

After all, the more black energy stored, the better the rewards, and Uchiha Touyu was also preparing to use the extremely energy-intensive Precision Sacrifice, so of course the more black energy stored, the better.

Currently, I am more than capable of protecting myself on the battlefield, and even if I were to exchange for something good, it would be difficult to convert it into combat power in a short period of time—no matter what I inherited, it generally requires a period of cultivation.

Putting everything else aside, just take the moves of that Evil-Repelling Sword Technique. Even a ninja of Hatake Sakumo's caliber couldn't fully grasp it after studying it for months, and he still hasn't integrated it into the White Fang Sword Technique. And these are just the simplest moves; the more profound techniques would probably take even longer to master.

"Konoha's battlefield has a rotation system... By the time this battle ends, I'll have been on the battlefield for about half a year. I can apply to go back and take a six-month vacation, and then I can perform the sacrifice."

"We can take down more Sand Ninja in this battle and gather more Dark Qi!"

After making his decision, Uchiha Touyu stopped paying attention to his book of demonic inheritance and instead began his special training on the basics.

Generally speaking, once someone's strength reaches the level of Uchiha Tou, it becomes extremely difficult to improve in a short period of time.

Otherwise, they could train in higher-level ninjutsu, such as Sage Mode, Lightning Release Chakra Mode, Flying Thunder God Technique, or other super-powerful ninjutsu.

Alternatively, one could simply develop their own bloodline limit, such as increasing the level of the Sharingan, or fusing different chakra to create bloodline release techniques like Wood Release or Magnet Release.

As for refining the foundation and hoping to elevate it to a higher level, that's not impossible, but it would take at least ten years to truly see the results.

However, having a large number of souls allows for cultivation through possession skills, increasing Uchiha Touyu's cultivation efficiency by at least fifty or sixty times, if not a hundredfold.

A little over a month is roughly equivalent to five or six years of painstakingly honing his fundamentals, which is enough to show tremendous changes in him.

Although he didn't seem to have learned any new ninjutsu, his chakra circulation speed had increased significantly, his nature transformation and form transformation had improved by 50%, and the number of hand seals he could perform had decreased by half. It could be said that he had grown in every aspect and completed all the accumulation required to become an elite Jonin.

Coupled with his formidable White Fang Blade Technique and his cunning stealth combat tactics, even without using the Spirit Binding General technique, he would be a master of mowing down enemies, approaching the level of a near-Shadow Master.

Another point is that Hatake Sakumo has no longer needed to help Uchiha Touyu fight for the past month or so, and has begun to wholeheartedly learn and absorb the Evil-Repelling Sword Technique from another world.

Although the Evil-Repelling Sword Technique can only be considered a third- or fourth-rate martial art after the internal energy incantation is removed, the sword technique itself is a martial art that requires extremely high speed. When the speed exceeds a certain limit, the Evil-Repelling Sword Technique, which was originally a third- or fourth-rate technique, will leap to become a first-rate sword technique.

Moreover, this was the first time that Hatake Sakumo had learned a sword technique that required complex moves to unleash its power, and he was extremely interested in it, finding it very inspiring.

In the ninja world, swordsmanship doesn't really have any fixed moves; it's mostly just a combination of a dozen or so basic slashing techniques.

Even Sakumo Hatake's White Fang Sword Technique itself wasn't particularly innovative in terms of moves. At most, it was just faster, more ruthless, and more accurate, eliminating all unnecessary movements and pushing a few simple techniques to their limits. The vast majority of its power still came from the enhancement of chakra ninjutsu.

Hatake Sakumo originally thought that his White Fang Sword Technique had reached a certain limit, until he saw the Evil-Repelling Sword Technique and realized that there could be so many variations in sword techniques. After more than a month of learning and absorbing, this Konoha White Fang finally completely absorbed the Evil-Repelling Sword Technique into his White Fang Sword Technique.

The current White Fang Sword Technique, while retaining its original fierce and swift nature, also reveals a touch of eeriness and ruthlessness. While maintaining its ability to instantly kill, it can completely suppress high-speed ninjas of the same level even in prolonged combat.

Furthermore, Uchiha Touyu discovered that Hatake Sakumo's newly revised White Fang Sword Technique was extremely well-suited to his sneaky, high-speed stealth fighting style. The already sinister sword technique, after becoming invisible, exuded an even more unpredictable and eerie aura, making it even more threatening than when he was in Lightning Release Chakra Mode.

Of course, both modes have their advantages and disadvantages. The stealth mode is more focused on surprise attacks, while the lightning chakra mode is more focused on orthodox attacks. In battle, you should use them flexibly according to the specific situation.

As Uchiha Touyu's own strength improved, when Hatake Sakumo possessed Uchiha Touyu again, he was able to fully unleash his power. In fact, because his White Fang sword technique had reached a higher level, he showed even greater strength.

His improved strength has given Uchiha Touya ample confidence. Now, instead of being as cautious as he was at the beginning, he is quite eager to participate in the upcoming battle.

Although the Ninja World War was dangerous, it was also a good opportunity to reap rewards. How could one so easily harvest ninjas like weeds at ordinary times?

In normal peacetime, the loss of a four-man ninja squad from a major ninja village would be a significant event. However, during wartime, even if Uchiha Hiu killed 400 ninjas on the battlefield, he would not face any criticism.

At the Konoha camp, Orochimaru watched as Uchiha Tou walked into the command room, a hint of surprise flashing in his eyes.

(This kid... has gotten a lot stronger again! In just one month, his aura, breathing, and posture are completely different from a month ago. It's as if he has gone through several years of hard training.)

While the battlefield can hone a ninja's strength, it only increases combat experience and the potential accumulated during training can be unleashed in actual combat. Orochimaru had never seen someone like Uchiha Hiu, who could improve so quickly even in the foundation that requires accumulation, before.

"It seems you've made quite a bit of progress this month, Fei Yu-kun."

"Even last-minute sparring can be effective; with war approaching, some emergency training is essential."

Although Orochimaru was very curious about Uchiha Tou's rapid progress, he also knew very well that top ninjas all had their own secrets, and even he, Orochimaru himself, had quite a few secrets. So he naturally wouldn't pry into the reason for Uchiha Tou's sudden increase in strength.

Before the end of at least the Third Shinobi World War, Orochimaru had not completely become a mad scientist; he had only developed that tendency.

(End of this chapter)