Chapter 160: Red eyes are a disease and need to be cured!

As expected, Kato Yufeng discovered sealing formations similar to the ones inside the room etched upon Uchiha Yashiro's tightly closed eyelids.

Unlike the seals found on the door and the corners of the walls, the formations inscribed on Uchiha Yashiro's eyelids were far more intricate and delicate in design.

"Heh, since I won't be seeing Tsunade's big white rabbits tonight, I might as well take a good look at my little black mouse. I hope the Uchiha clan doesn't disappoint me."

Kato Yufeng turned his head to glance toward the doorway, double-checking the status of the two Uchiha guards outside. Seeing no unusual movements, he turned back to focus intently on studying the two seal formations.

After careful sensing and inspection, Kato Yufeng realized that the seals on Uchiha Yashiro's eyelids not only isolated the negative mental energy leaking out during the evolution of the Sharingan, but they also performed this function much more effectively than the seals on the door and walls.

More importantly, sealed within these two formations were two streams of highly unusual energy. Under the influence of the seals, they flowed and rotated in a specific pattern, acting almost like living entities as they continuously poured into Uchiha Yashiro's closed eyes.

Soon, Kato Yufeng identified what was flowing into Uchiha Yashiro's eyes: pupillary power! Pupillary power originating from Sharingan belonging to the same bloodline of the Uchiha clan.

Through the ethereal and dim perspective of his soul vision, those two clusters of pupillary energy appeared as blood-red as fresh gore, laced with faint wisps of black, rotating slowly and at a uniform speed.

*Huh? What is this?*

Kato Yufeng observed the two clusters of pupillary energy closely, feeling that the scene before him looked somewhat familiar. He suddenly realized that the shapes of those two energy clusters resembled a pair of crimson Sharingan eyeballs!

The pupillary energy flowing into Uchiha Yashiro's eyes looked just like blood-red tears weeping from those two crimson eyeballs!

*Could there still be Mangekyo Sharingan within the Uchiha clan?*

Once Kato Yufeng determined what the special energy resembled, his first thought was that the Uchiha clan still possessed preserved Mangekyo Sharingan left behind by their ancestors.

Without hesitation, Kato Yufeng channeled the chakra and soul power within his body, splitting off a wisp of his soul to project it directly into the energy clusters suspected to be Mangekyo Sharingan.

...

A short while later, Kato Yufeng recalled his soul avatar.

"Whew! What a pity!" Staring at the two living-like clusters of pupillary energy, Kato Yufeng sighed inwardly.

These truly were two Mangekyo Sharingan!

Two Mangekyo Sharingan whose pupillary power had been completely exhausted, stripped of their vitality, leaving behind nothing more than two empty shells.

As soon as Kato Yufeng's soul avatar had entered, his vision was flooded with crimson blood and pitch-black pupillary energy. Upon closer inspection, however, he noticed that while these energies were constantly rotating and flowing, they lacked the vitality and agility inherent to living things.

Upon further distinction, he realized that although all these pupillary powers shared a similar Uchiha bloodline aura, they clearly originated from different Uchiha clan members.

Those Sharingan pupillary powers had been injected by later generations of the Uchiha clan.

Kato Yufeng carefully distinguished these various strands of pupillary power from different individuals. Their quantity was neither large nor small—it matched precisely the number of Uchiha clan elders he had seen earlier.

After attempting to absorb a portion of that pupillary power, Kato Yufeng found that his ninja system registered almost no reaction, save for replenishing a tiny fraction of his consumed mental and soul energy. It seemed that if he wanted to awaken the illusion abilities within the ninja system, he would still need to absorb the pupillary power of a living Mangekyo Sharingan.

With a hint of regret, he set aside the two hollow husks of the Mangekyo Sharingan and turned his attention back to his little black mouse, Uchiha Yashiro.

He thought to himself that the Uchiha clan had certainly gone to great lengths to ensure Uchiha Yashiro successfully unlocked the Mangekyo Sharingan.

Not only did they unearth a pair of ancestral Mangekyo Sharingan specimens from the bottom of their chests, but they also had the elders of the clan drain the pupillary power from their own Sharingan to sustain Uchiha Yashiro's consumption.

"Uchiha Yashiro, if you still can't unlock the Mangekyo Sharingan after expending this many resources, you won't even live up to your own name. Being the sole heir for eight generations, you might as well change your name to Uchiha Dead-End!"

Kato Yufeng muttered a quiet critique to the still-unconscious Uchiha Yashiro, then reached out to place his hands upon Uchiha Yashiro's forehead. He mobilized the chakra and soul power within his body, parting a strand of his soul to offer his little black mouse a final helping hand.

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Within Uchiha Yashiro's soul space—much like the interior of the two Mangekyo Sharingan eyeballs Kato Yufeng had just entered—was filled with crimson blood and pitch-black pupillary power.

However, those two Mangekyo Sharingan were lifeless objects. In comparison, Uchiha Yashiro's soul space possessed a trace of vitality. In Kato Yufeng's eyes, these pupillary energies appeared far more agile, converging along a fixed trajectory toward the depths of the soul space.

Following the currents of pupillary energy, Kato Yufeng searched all the way until he finally found Uchiha Yashiro's unconscious soul body deep within the soul space.

Being unconscious worked to his advantage, saving Kato Yufeng unnecessary trouble.

Watching the streams of pupillary power continuously converge from all directions of the soul space and ultimately flow into the eyes of Uchiha Yashiro's soul body, Kato Yufeng also controlled his own soul body to channel pure soul power into Uchiha Yashiro.

Naturally, Kato Yufeng took the opportunity to browse through Uchiha Yashiro's memories as well.

Before unlocking the Sharingan, Uchiha Yashiro's memories were fairly normal—merely the recollections of an ordinary Konoha ninja, coupled with the inexplicable arrogance inherent to being a member of the Uchiha clan.

However, from the moment Uchiha Yashiro awakened the Sharingan, the memory fragments viewed by Kato Yufeng shifted from normal to shades of blood and darkness.

The color of the Sharingan!

Those scenes frequently contained various negative emotions: pain and animosity, hatred and evil, loneliness and despair, arrogance and jealousy, slaughter and cruelty...

These were deep-seated memories. Uchiha Yashiro himself might not have ordinarily noticed them, but these various negative emotions, whether he wished it or not, influenced him every single moment.

Yet, this was the true essence of the Sharingan—the cursed eyes.

The reason the Sharingan is called a cursed eye is because the more a Sharingan below the three-tomoe level is used, the greater the burden it places on the user's body; the more the Mangekyo Sharingan is used, the more permanent damage it inflicts upon the user's eyes, causing irreversible vision loss leading ultimately to blindness.

Yet, in Kato Yufeng's view, the more crucial reason it is called a cursed eye lies in its harsh awakening process: witnessing the death of loved ones or individuals of great importance, or enduring severe psychological trauma.

In essence, it involves using endless negative emotions to continuously stimulate the brain and soul.

This constituted mental and soul trauma, far more cruel than mere physical injury.

In other words, every Uchiha clansman who had awakened their eyes was, in Kato Yufeng's eyes, a lunatic within the mental and soul realm, subjected to the unceasing influence of negative emotions.

Any Uchiha clansman who awakened the Sharingan without degenerating into a complete pervert could undoubtedly be described as possessing a powerful soul and resilient mental fortitude, making the label of genius entirely well-deserved.

Whether Uchiha clansmen with awakened Sharingan were true madmen was not something Kato Yufeng cared deeply about; that was a headache for the Uchiha clan to deal with.

Kato Yufeng was merely conducting an experiment by chance, intending to leverage Uchiha Yashiro's opportunity of unlocking the Mangekyo Sharingan to awaken the illusion abilities within his own ninja system.

Still, having red eyes was an ailment that required treatment!

When it came to treatments, Kato Yufeng was an expert.

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PS: Seeking recommendation tickets and subscriptions.