Human-Human Fruit, Sage Mode

Two sharp, forked horns peek out from her crimson hair. Her eyes are adorned with deep crimson eyeshadow, the whites of her eyes are tinted black, while her pupils are orange-yellow. Looking into her eyes feels like gazing into a bottomless abyss. Transparent Chakra flows and shifts around her like clouds, occasionally transforming into ferocious monsters before dissipating.

Hito Hito no Mi, Sage Mode.

This is the result of Katsuki's research.

Because it was researched based on Jugo, it was inevitably influenced by him to some extent. For example, the pointed horn on his forehead and the blackened whites of his eyes are somewhat similar to Jugo's Sage Mode. And like Jugo, although using Sage Mode does not require sitting and absorbing Natural Energy, it will generate a murderous impulse, which is quite strange. Even Katsuki has not been able to figure out the reason.

Fortunately, his strength far Jugo that of Jugo, and he possesses extremely high self-control. Having studied the Hito Hito no Mi many years, he is able to control this murderous impulse.

"Natural Energy, huh? This Amber Purifying Pot has existed for so many years, and today it's going to shatter!"

With a stomp of his foot, a burst of lightning ignited in the darkness, instantly transforming into a Thunder Chariot that carried Katsuki toward the spatial boundary inside the Amber Purifying Pot.

Before long, it crashed into the boundary barrier, a barrier made of pure Natural Energy, extremely strong, and constantly replenished with Natural Energy. Even Tailed Beast could not break through this barrier inside.

A Lightning Ball struck the barrier and was instantly obliterated, and in my perception, Natural Energy rapidly surged in to replenish the energy consumed.

Following that, Katsuki conducted several more experiments, using Wind Release, Water Release, Fire Style, Earth Release, and even Taijutsu attacks. She gained a deeper understanding of this barrier. Earth Release and Water Release were the least effective, followed by Fire Style Wind Release. Only Lightning Release Technique had the strongest penetrating power and caused the deepest damage.

"I'm afraid the power of the Tailed Beast Bomb isn't enough. Does that mean I need to surpass the destructive power of the Tailed Beast Bomb? No, that's not right. The Tailed Beast Bomb's attack area is too large. It's okay that the energy is dispersed. Lightning Release Technique is the Ninjutsu I'm most proficient in."

After pondering for a moment, Katsuki tentatively started to make a move once again.

Great Thunderclap!

Lightning Fork!

Lightning Dragon!

He tested him again and again. Not to mention that his Chakra was as deep as the ocean, and that he could draw on Natural Energy in his Sage Mode without fear of depletion, he casually made his move after another, greeting him with a smile.

He didn't use Shadow Clone, since too many Shadow Clones would weaken his own combat power. In this situation, concentrating his strength was the wisest choice.

As he continued to probe and increase the power of his Lightning Release Ninjutsu, the barrier did indeed begin to shake. However, to completely destroy it, he needed to unleash an even greater burst of power at once.

"Hmm, this is a bit troublesome! The Great Thunderclap and Lightning Fork Ninjutsu have been pushed to their limits. Even if we consume more Chakra, it won't work. I need to think of something."

He frowned, deep in thought Katsuki.

Ninjutsu itself has its limits. A C-rank Ninjutsu might have the power of a B-rank Ninjutsu in the hands of a master, but it's unheard of for anyone to wield a C-rank Ninjutsu with the power of an A-rank Ninjutsu. This is the limitation of Ninjutsu itself. Otherwise, so many people wouldn't be working so hard to develop high-level Ninjutsu.

In terms of destructive power alone, Ninjutsu like the Great Thunderclap and Lightning Fork are actually S-rank. With the amplification of Senjutsu Chakra, they are enough to go head-to-head with the Tailed Beast Bomb. However, it is extremely difficult to transcend this level.

Or to be more precise, S-rank is a very vague concept. Any Ninjutsu whose power and danger exceed A-rank is called S-rank Ninjutsu, just Jonin. Katsuki is also Jonin, but he alone is enough to defeat a group of Jonin.

"Do we need more powerful Ninjutsu, or more precisely, Senjutsu?"

Katsuki took a deep breath, looked at the barrier in front of her, and prepared to test her newly created immortal Senjutsu.

"Celestial Technique, Shadow Lightning Pillar"

A dark red lightning bolt flickered with a ring of eerie light in the darkness.

The ultimate transformation of Lightning Release Technique, just like the Black Lightning Release Technique researched by the Third Raikage, is that Katsuki has also made breakthroughs in Lightning Release Technique. After all, Earth Release Lightning Release Technique have always been his strongest means of attack. Earth Release training focuses on defense, while the training of Wind Release Technique, Fire Style, and Water Release Technique is to broaden his horizons and make his methods more complete, so as to avoid being restrained in certain special situations.

He didn't know how the Third Raikage had developed the black Lightning Release Technique, but Katsuki, after combining Senjutsu Chakra, finally managed to develop the red Lightning Release.

Crimson Lightning is more ferocious than ordinary Lightning Release, and its explosive power is also more outstanding. It is the result of research combining Lightning Release and Fire Style. Although he did not obtain Kekkei Genkai, he gained a crimson Lightning Release. It can be said that he lost one thing but gained another.

Dark red lightning gathered in his palm, like a beating heart, but the power it contained was enough to blast a person into ashes.

Boom!

He pushed his palm forward, and a dark red lightning pillar, as thick as a teacup, appeared. This was already the limit of Katsuki's compression; he had given it his all to achieve the goal of breaking through an entire area from a single point.

The dark red lightning pillar twisted and turned like a snake in mid-air. There was nothing that Katsuki could do about it. Lightning is not like flowing water or mud; it is not so easy to control. Lightning Release Technique is notoriously violent and difficult to master. It is called Shadow Lightning Pillar, but when used, it twists and turns more like Shadow Lightning Snake.

Fortunately, its power did not disappoint Katsuki's expectations.

The dark red lightning pillar shook the space, and in that instant, the Natural Energy within the space showed signs of disorder.

Now that Katsuki had a plan, she immediately unleashed a series of dark red lightning bolts, attacking with both hands simultaneously. The Chakra around her materialized into six ferocious-looking monsters with fangs, which also spat out bolts of dark red lightning.

The dark interior of the bottle began to shake violently. Once one point was broken, the entire interior collapsed. After all, without a treasure owner like the Sage of Six Paths to maintain it, it was already a miracle that this thing could last for so many years. It wasn't like the Uchiha Clan's Gunbai, which was made from the branches of Divine Tree, with a good foundation, so it wouldn't break no matter how much it was damaged.

Under Katsuki's relentless bombardment, the barrier formed by Natural Energy finally reached its limit and was pierced by the dark red lightning pillar. At the same time, it affected the entire space inside the bottle, and the Natural Energy began to run rampant. The Natural Energy inside the bottle was much denser than that outside. Now that a gap had been opened, it immediately created enormous pressure, completely tearing the entire space apart and causing a massive tornado storm in the outside.

Although the pressure was intense, it wasn't enough to break through Katsuki's defenses. Therefore, he easily tore through the storm and appeared before the Six Paths Clone and Uchiha Genso. (To be continued)