Perfect Weapon ×2

Inside the Konoha laboratory, Sarutobi Hiruzen appeared once again.

He looked at the Fujin and Raijin brothers, who were now significantly thinner, and nodded with satisfaction.

Originally, the Fujin and Raijin brothers were heavyweight contenders built like mountains of flesh.

Now, after their transformation into Perfect Beings, they had slimmed down considerably, yet Sarutobi Hiruzen knew this did not mean their strength had diminished.

On the contrary, their physiques had become more perfect and well-proportioned, trending toward that of a true Perfect Being.

Stepping forward, Sarutobi Hiruzen removed the curse marks from the brothers' bodies.

"Get up!"

Sarutobi Hiruzen commanded.

However, Fujin and Raijin remained indifferent, staring blankly at the floor with drool threatening to spill from their mouths.

Sarutobi Hiruzen understood that this was another side effect of becoming a Perfect Being: the loss of memory and a lack of cognitive function.

This was also the reason why Sarutobi Hiruzen had been unwilling to directly transplant the bloodline of a Perfect Being, choosing instead to take a roundabout path by practicing the Immortal Breathing method.

But for Sarutobi Hiruzen, this was not necessarily a bad thing.

A so-called biological weapon is only a good weapon if it is easy to control, and this period of cognitive blankness provided Sarutobi Hiruzen with a more convenient way to exert control.

Sarutobi Hiruzen immediately walked up to Fujin.

His hands moved in a blur of hand seals, and he pressed a finger against Fujin's forehead.

"Mental Secret Technique."

"Personality Molding Technique!"

Strange fluctuations of Yin Release rose from Sarutobi Hiruzen's body, the nature transformation of his Yin Release Chakra turning into a form of tangible mental energy that wantonly invaded Fujin's mind.

Fujin subconsciously tried to use his Chakra to resist, but lacking the proper method, he found it difficult to fend off such high-level Yin Release Chakra.

A series of entirely virtual, illusory memories poured in, gradually filling the void in Fujin's consciousness.

After a short while, Sarutobi Hiruzen let out a long breath, having completed the execution of the Mental Secret Technique.

This was a mental ninjutsu Sarutobi Hiruzen had created during his time in the Demon Slayer World specifically to control Perfect Beings.

It was a technique born from borrowing heavily from various genjutsu and the mental secret techniques of the Yamanaka clan, combined with Sarutobi Hiruzen's own formidable attainments in Yin Release.

In terms of learning difficulty, it was definitely S-rank.

However, the application range of this technique was very narrow.

If used on an adult with a complete mind, the results would be minimal; at most, one could only implant a large amount of false memories, making it difficult to form a complete personality.

If used on a child, the false memories would struggle to shake the real ones, often resulting in a split personality as the best-case scenario.

But as it happened, when a Perfect Being was first born, its mind was a complete blank, devoid of any original memories or personality.

Thus, Sarutobi Hiruzen could use the Personality Molding Technique to shape the personality and memories he desired, thereby controlling the perfect weapons.

Sarutobi Hiruzen watched as the look in Fujin's eyes slowly shifted from completely vacant to having a glimmer of spirit.

Then, as if just waking up, he shuddered, and his pupils reflected the figure of Sarutobi Hiruzen.

"Lord Third!"

Fujin immediately knelt on one knee, expressing his respect.

Sarutobi Hiruzen nodded faintly, observing Fujin after the personality molding.

Although he appeared to have a complete mind, a closer look revealed that his eyes still held a certain dullness and rigidity.

Sarutobi Hiruzen knew this was the weakness of the Personality Molding secret technique—or more accurately, it was due to his own insufficient attainments in Yin Release.

He could not create true intelligence or spirit, so the consciousness he created was somewhat rigid, even stiff in its thinking.

If it were the Sage of Six Paths' mastery of Yin Release, he could even create creatures with complete spirits like the nine Tailed Beasts; he would certainly be able to create a perfectly flawless consciousness.

Sarutobi Hiruzen mused; the pinnacle of Yin Release was the ability to create something from nothing.

However, a false personality was enough for Sarutobi Hiruzen. After all, he did not need Fujin and Raijin to carry out complex missions; he only needed them to be able to fight and to be obedient.

The memories Sarutobi Hiruzen had implanted were mostly those of combat training, along with memories that prioritized his commands above all else.

In other words, he had molded a traditional personality of a death-defying loyalist.

Following this, Sarutobi Hiruzen repeated the process, filling Raijin's mind with a molded personality.

Half a minute later, Sarutobi Hiruzen let out a long breath, his expression somewhat weary.

Such a secret technique was not only extremely taxing on his Chakra but also drained his mental energy; having performed it twice, his Chakra reserves were nearly bottomed out.

However, looking at Fujin and Raijin kneeling before him, their powerful auras vaguely exerting pressure even on him, Sarutobi Hiruzen nodded with satisfaction.

This was his true trump card for winning the war against the Cloud Ninja—perfect biological weapons evolved on the foundation of an ultra-strong physical body.

"Now then, it is time to test the power level of Fujin and Raijin..."

Sarutobi Hiruzen led Fujin and Raijin to an open field.

This was the very site Sarutobi Hiruzen used to experiment with Ninjutsu when he first transmigrated.

"Test your strength here."

"Spar with each other; let me see you go all out!"

Sarutobi Hiruzen issued the order directly.

Fujin and Raijin stood to the side like gate guardians, bowing in unison to acknowledge the command.

Once they reached the open ground, the two assumed their stances and vanished from their spots in an instant, colliding with a boom like two speeding tanks.

"Boom!"

A massive shockwave shattered a large portion of the clearing; with just this first strike, a layer of the ground within a hundred-meter radius was sheared away.

The blast of air ruffled Sarutobi Hiruzen's hair and extinguished the cigarette in his mouth.

But Sarutobi Hiruzen paid no mind, his gaze locked tightly on the exaggerated battle between Fujin and Raijin.

Following that, Fujin and Raijin maintained cold expressions, throwing punches and kicks as they unleashed a reasonably proficient Konoha Style Taijutsu.

Yet, unlike ordinary taijutsu ninjas, these two perfect weapons seemed to have no concept of defense or evasion, nor did they appear to feel any pain.

They allowed the other's attacks to land on their bodies while delivering their own punches and kicks without a shred of mercy.

There was no hint of brotherly affection; instead, they looked like mortal enemies locked in a life-or-death feud.

The earth cracked and shockwaves rolled outward.

The two Perfect Beings were like titans, every movement drawing upon immense power and wantonly destroying the surrounding environment.

In just a few moments, the once relatively flat, open forest had been completely plowed through, looking as devastated as if it had been razed by artillery fire.

Sarutobi Hiruzen nodded to himself as he watched.

They already possessed physical strength superior to that of a Jonin, and after being baptized by the Demon King's Blood, it had risen to yet another level.

The destructive power of this level of taijutsu was almost comparable to those who had mastered Nintaijutsu to its peak.

"In terms of raw power, they are a bit inferior to Tsunade's monstrous strength..."

"But that near-immortal regenerative ability is the true hallmark of a Perfect Being."

Sarutobi Hiruzen watched Fujin and Raijin, noting that their reckless, defense-less combat style had been ingrained into them during the memory implantation process.

Struck by blows of equal magnitude, Fujin and Raijin naturally sustained injuries, with blood occasionally spurting from their mouths, noses, and limbs.

However, the regenerative ability of a demon was far too potent; unless the wound was fatal, it would heal completely in an instant, having absolutely no impact on the battle.