Naruto: I'm really not an evil scientist!

"that……"

Mei Terumi's previously expectant expression froze instantly. Suddenly, the image of herself as a frail, wrinkled old woman in Boruto flashed into her mind, and her face darkened like the gloomy sky before a storm.

Like all ninjas who have watched Boruto, Mei Terumi loathes the manga. Of course, if there's anything she hates even more, it's undoubtedly the Boruto anime. The dragging plot and the broken character designs are simply unbearable for her to watch.

Seeing the change in Terumi Mei's expression, Hiruko secretly felt smug and pressed on, saying, "Even if we had a wedding, how would we be any different from how we are now? Do you think we would be happier just by wearing the cloak of marriage?"

What does this kind of formalism really represent? It's nothing more than a facade for others to see.

Stop dwelling on this; marriage isn't everything in life.

As long as two people are happy together, that's enough. Why think about "yours is mine" and "mine is yours," dividing things so clearly? That's exhausting, just needlessly shackled yourself.

After saying that, Hiruko's eyes darted around, and a subtle slyness appeared at the corner of his mouth. His tone suddenly changed like a sharp blade being drawn from its sheath, as if he were just casually mentioning it: "By the way, how's the compilation of the Kirigakure secret ninja tool forging method going?"

"That is a closely guarded secret of Kirigakure, passed down through generations and requiring countless efforts. Every step of the process embodies the wisdom of our ancestors who fought desperately against enemy forces and explored on the brink of life and death. You must pay attention and not slack off."

And then there's the bloodline limit and Sage Mode I taught you. These two are key to increasing your strength. When fighting against powerful enemies, the bloodline limit can allow you to catch them off guard and turn the tide of battle instantly with a unique attack method.

Sage Mode allows you to draw upon the power of nature, possessing a continuous and powerful chakra, enabling you to fight enemies for a long time without being at a disadvantage.

Don't let your romantic thoughts distract you from your duties. Otherwise, in the brutal battles of the ninja world, no one will show you any mercy.

Hiruko was also a natural at using scumbag quotes and changing the subject. With just a few words, she cleverly steered the conversation away from the sensitive issue of marriage, trying to get Mei Terumi to focus on her training and village affairs.

"Ah, it's happening again..."

Mei Terumi pursed her lips helplessly, then said seriously, "We have compiled all the files we could find on ninja tool forging, but during actual combat exercises, I found that there are still quite a few missing documents."

For example, in our last encounter with an enemy ninja squad, the special ninja tools they used had a forging process that was not recorded in our files, making it very difficult for us to deal with them.

As for another, more direct and violent way to use Boil Release, when fighting a powerful enemy in close combat, I used this move to instantly release high-temperature steam, forcing the opponent back several feet and successfully turning the tide of battle.

As for Sage Mode training, after absorbing the chakra you left within me, I have gradually mastered it through practical experience fighting wild beasts in the mountains and forests. Now I can use the power of nature to strengthen myself more freely.”

Then, as if remembering something, her eyes gleamed with anticipation, and she asked, "Um, I actually wanted to ask, Lord Hiruko, could you teach me the improved Yin Sealing Technique?"

"Yin Seal? Why do you suddenly want to learn this?"

Hiruko asked with a slightly puzzled expression, her brows furrowing slightly, "You have no foundation in medical ninjutsu, so even if you learned it, you wouldn't be able to activate the Hundred Healings Seal."

Moreover, you have the cursed seal I bestowed upon you. When fighting enemies, the cursed seal will instantly erupt, which will not only increase your chakra level, allowing you to unleash powerful attacks, but also absorb natural energy to revitalize your body and allow your wounds to heal quickly.

In the last battle against the enemy's elite Jonin, you were seriously injured. It was the cursed seal that enabled you to quickly recover your fighting strength and turn the tide of battle.

The massive amount of chakra and self-healing ability associated with the cursed seal are in no way inferior to the Hundred Healings Technique. Why waste time learning this complex sealing technique?

"Lord Hiruko, do you really not understand the significance of the Yin Sealing Technique for female ninjas? Even if it's just a modified version of Tsunade's technique, it's still a divine skill that countless female ninjas dream of!" Mei Terumi said, utterly speechless.

Mei Terumi didn't have much of a reaction after reading the Shippuden manga, but after reading the Boruto manga, she became extremely envious of Tsunade's Yin Seal technique, which allows her to maintain her youthful appearance even in her seventies and eighties.

Just take Tsunade's version of the Yin Seal as an example. It has all the advantages that women and even all ninjas dream of, such as accumulating chakra, maintaining youth, freely controlling the body's endocrine system, easily changing body shape and age, being healthy and disease-free, never losing body shape, and maintaining combat power at its peak.

These advantages allowed her to maintain peak condition and remain invincible in long battles against formidable enemies.

As for breast enhancement, it's unknown whether Tsunade has any special breast enhancement techniques. It's likely that she uses the Yin Seal and some medical knowledge to stimulate and control the growth of certain parts of her body to achieve a perfect figure.

"You mean you have the ability to control your body shape and stay young forever? Forget it. That requires a very high level of understanding of the human body, as well as a lot of medical knowledge. You're not a medical ninja, so there's no need to waste your time learning from scratch."

Hiruko comforted him, "However, you don't need to be too discouraged. As long as you master the power of the cursed seal, you can do those things with my power when fighting enemies."

Don't worry, with me around, you'll always be young and beautiful. You won't turn into that old woman from Boruto.

Ultimately, after much deliberation and weighing of options, Hiruko granted Terumi Mei's strong wish.

He focused his mind slightly, circulated his chakra, and separated a drop of blood containing pure power.

The drop of blood trembled slightly in the air, and then slowly transformed into a thumb-sized version of herself, small and exquisite yet incredibly agile, thus becoming Mei Terumi's exclusive private tutor for one-on-one training.

Despite his tiny size, no bigger than a thumb, this person's abilities are not to be underestimated.

As long as they bask in the sun and absorb the warm essence of sunlight, or eat a white Zeus dog food to replenish some special energy, this thumb-sized person can quickly grow as big as an inflating balloon.

Of course, Hiruko herself was also incredibly powerful, able to change size at will, freely control her body shape, and switch between various forms with ease.

The Yin Seal was originally a combat support seal used by the Uzumaki clan during the Warring States period, simply to accumulate chakra.

At that time, the ninja world was engulfed in war, and every bit of chakra was a matter of life and death, so the Yin Seal came into being.

Later, thanks to the meticulous modifications and expansions by Tsunade, a medical genius, it gained a wider range of uses, including not only accumulating chakra but also regulating bodily functions.

Later, Hiruko made some ingenious improvements to Tsunade's method, which has become a special cultivation method.

This method can greatly reduce the risks of cultivating immortal arts, allowing practitioners to avoid many detours when practicing immortal arts, and it can circulate with the natural energy of the outside world at all times, constantly strengthening one's immortal arts chakra, which is far removed from the most primitive Yin Seal.

Therefore, without one-on-one tutoring from Hiruko herself, simply giving someone a scroll is not enough for most people to learn it on their own. Even Sakura Haruno, the ninja with the academic genius handpicked by Kishimoto, only recently received Hiruko's careful guidance and, after countless attempts and failures, barely managed to learn this version of the Yin Seal.

……

Mount Myoboku, a sacred site, is shrouded in mist and clouds, resembling a fairyland, yet it also exudes a sense of mystery and majesty.

"Humans, get out of here!" The enormous toad Gamabunta had a pipe dangling from his mouth, the sparks in the pipe flickering as if proclaiming his discontent.

Its forelimbs gripped the short knife at its waist tightly, the blade gleaming coldly, giving it the look of a mafia boss, ready to chop people at any moment. Its menacing appearance seemed to suggest that it wanted to devour the human in front of it alive.

"Calm down. I came to Mount Myōboku with no ill intentions. I'm simply here to learn. Please don't be so wary," Hiruko said with a smile, her eyes revealing sincerity and friendliness.

He truly had no malicious intent; he was simply envious of the Great Toad Immortal's ability to foresee the future and avoid misfortune.

Although the priestess also possesses precognitive abilities, her predictions are inaccurate when it comes to Naruto Uzumaki.

It's not that Shion's prophetic talent is necessarily inferior to that of the Great Toad Sage; it's just that the future is not static, and Shion still has room for improvement. After all, even the best talent needs sufficient resources and time to grow.

However, one thing is clear: the Great Toad Sage has a profound understanding of the ability to foresee the future, and his experience in this area is far more advanced than that of Shion, a little girl who doesn't understand the principles of her own talent.

Chapter 270 Tsundere Sasuke

Before Hiruko arrived at Mount Myōboku, he had just raided the White Snake Sage's lair with the help of Orochimaru and Sasuke.

He used his transformation technique, even transforming into a white snake, which allowed him to move freely through the Dragon Cave.

In less than two days, he completely mastered the magic system of Ryuchi Cave using his snake body, and recorded the special abilities of different snakes to enrich his knowledge.

Jugo's mutated immortal body was created under the influence of the natural energy of Ryuchi Cave, while Hiruko used Jugo as the material for his transformation.

So although the two are no longer related after the transformation, Hiruko is still naturally adapted to the Sage Mode system of Ryuchi Cave. In addition, with the learning ability of an ultimate creature, he can learn it with ease, as easily as eating and sleeping.

However, only when you truly transform into a snake and immerse yourself in it can you fully grasp the essence of the Dragon Cave Immortal Arts.

Besides the Sage Art: Inorganic Reincarnation and Sage Art: White Strike Technique, which are famous for the Great Serpent Kabuto, the snakes of Ryuchi Cave also possess many other special abilities.

Abilities such as floating in the air, becoming invisible, changing objects to confuse enemies, absorbing external energy, petrifying opponents, transforming into various forms, and releasing mental waves to transmit information are all present.

Within the magical system of Ryuchi Cave, the unique levitation ability is as mysterious and unpredictable as ethereal clouds and mist, but Hiruko, with his outstanding talent and tireless research, has thoroughly understood its principles.

A flash of inspiration struck him, and he thought he could change the name and transform it into a flight ability suitable for humans to learn—the Flight Technique.

Imagine how magnificent it would be if humans could soar through the skies using this technique.

Of course, there are very few people among humans who can cultivate immortal arts, just like the few stars in the night sky.

If we want to promote flying ninjutsu in the future, Hiruko thinks it might be better to first create a fighting spirit wing as a transition.

In any case, he had already thoroughly studied the so-called Peacock Technique of the Star Ninja Village, and the mysteries of those spells were no longer secrets to him.

After Hiruko mastered all the magic arts of Ryuchi Cave, the White Snake Sage learned that he also wanted to learn the essence of the magic arts of the Great Toad Sage of Mount Myoboku. So, he thoughtfully sent a small snake to lead Hiruko to the entrance of Mount Myoboku.

Mount Myoboku is located in an extremely secluded place, surrounded by clouds and mist, as if shrouded in a mysterious veil.

Without the help of the White Snake Immortal and without a medium to guide him, Hiruko would have been difficult to find. He might have wasted several more days wandering aimlessly in the vast mountains and forests.

"Hmph, reeking of snakes, he's obviously no good. Mount Myōboku doesn't welcome cultivators of immortal arts from other holy lands!"

Gamabunta suddenly drew his short sword and slammed it into the ground. The sword instantly sank halfway into the ground. At the same time, he stomped his foot heavily, causing the ground to tremble slightly and creating a considerable commotion, in an attempt to frighten Hiruko.

When Gamabunta was a child, he was once blocked at the entrance of Ryuchi Cave by a snake. The snake was baring its teeth and claws and looked fierce, which made Gamabunta tremble with fear.

Later, when Jiraiya was still a child, he used a summoning technique without a summoning contract to come to Mount Myōboku and help to shake the snake away, allowing it to escape.

Therefore, Gamabunta didn't have a good impression of the snakes in Ryuchi Cave, since snakes swallowing toads is a natural enemy of their species.

It would never allow anything with unclear ties to Ryuchi Cave, and whose very nature is unknown, to enter Mount Myōboku.

If it weren't for sensing the ridiculously large amount of Sage Chakra within this guy's body, and the fear and apprehension it felt towards him, Gamabunta would have already attacked and slashed this "suspicious individual" to the ground with his short sword.

"Bunta, take another look."

Hiruko's lips curled into a confident smile. He then slowly raised his head, and orange-red eyeshadow instantly appeared on his face. The color was so bright and dazzling, like a burning flame.

The pupils were also affected by the magic, turning into horizontal lines like a frog's eyes, which looked particularly eerie.

"This is... impossible! How could you use the Sage Techniques of Mount Myōboku?" Gamabunta stared in shock, his mouth agape as if he could fit a fist in it, and the short sword in his hand almost slipped from his grasp.

"How is it? I don't smell of snakes anymore, right? Can I enter Mount Myōboku now?" Hiruko said with a grin, his expression somewhat mischievous.

It is important to know that the natural energy of Mount Myoboku interacts with the toads who practice sage techniques. Therefore, it is easy for frog-like characteristics to appear when absorbing natural energy using the sage techniques of Mount Myoboku.

Those who fail in their cultivation of immortal arts on Mount Myōboku will be turned into stone frogs because they cannot withstand the impact of natural energy, and will be frozen there forever.

Jiraiya could even use the Frog Transformation Technique to turn humans directly into toads, similar to Lulu's Polymorph in League of Legends, which was almost indistinguishable from sorcery.

"Who exactly are you? Now that you've already mastered immortal arts, why do you still need to go to Mount Myōboku to learn more?"

Gamabunta asked, puzzled, while keeping a wary eye on Hiruko, crouching slightly, ready to deal with any potential danger.

“My name is Hiruko, you may have heard of that name,” Hiruko replied calmly.

"What! You are Berlugh?"

Gamabunta took two steps back, his expression somewhat subtle, a hint of surprise and wariness flashing in his eyes. "So, you learned this Sage Mode at Mount Myōboku in another world?"

Yes, that's right.

As for why I'm coming to Mount Myōboku, it's because I want to thoroughly master the essence of Mount Myōboku's sage arts, including the Great Toad Sage's prophetic abilities.

Hiruko's gaze was firm, and his tone revealed his yearning for a higher realm.

"I'm very greedy, and I'll stop at nothing to achieve my goals~"

Hiruko's lips curled up into an extremely wicked smile, a smile that seemed to conceal countless schemes and plots, practically screaming "bad guy" on his face.

"In the original world, I had a fairly close relationship with Mount Myōboku, but I couldn't act as recklessly as I do in this world."

Here, I have no qualms about what I do.

"What a shameless human being, as cunning and greedy as the stinking snakes of Ryuchi Cave."