[Do you want to activate the third pupil ring?]
When this message appeared in Kurogai's mind, he didn't hesitate and immediately agreed.
"Yes, activate it."
At his command, a warm pupil emerged above his forehead. The warmth then traveled through the optic nerves and slowly spread into Kurogai's eyes, enveloping them completely.
He laughed out loud even before fully opening his eyes, already knowing what ability had awakened.
As he opened his eyes, Kurogai's pupils had transformed into a pair of blood-red orbs, deep and mysterious like fresh blood. Within them, three black tomoe rotated slowly, creating a striking and unusual pattern.
The Sharingan.
And not just any Sharingan—a three-tomoe Sharingan.
This was the ability granted by Kurogai's third pupil ring.
"I've been waiting for this moment for a long time. Finally, I have the Sharingan, the cursed eye of the Uchiha clan. It's one of the most powerful ocular techniques."
Kurogai looked up at the sky and laughed with satisfaction. Knowing that his ultimate pupil could unlock various eye techniques, the first one he wanted to master was the Sharingan.
It wasn't the strongest technique out there, but it was by far the most versatile and useful. Kurogai was no exception—he admired it because it contained multiple powerful abilities, each valuable in its own right.
In the early stages, the Sharingan's power is most notable in its ability to cast illusions and copy techniques.
Genjutsu is an incredibly potent spiritual ability that can overwhelm opponents, providing Kurogai with a significant advantage.
The second major skill of the Sharingan is its power to copy. This isn't just copying simple moves but can mimic physical techniques with near-perfect precision. As a magic master, Kurogai's close combat was not his strongest asset, but with this ability, he could imitate the fighting styles of martial arts experts, significantly enhancing his combat effectiveness.
These two are just the initial powers of the Sharingan. As it evolves, its true potential unfolds.
In the early stage, the Sharingan might seem like a useful tool, but as it matures, its power becomes extraordinary.
When it reaches the Mangekyō Sharingan, techniques like Tsukuyomi, Amaterasu, Susanoo, and Kamui become available—abilities that could turn the tide of any battle.
This is exactly the power Kurogai yearns for.
Moreover, since this Sharingan evolved from Kurogai's ultimate pupil rather than through the Uchiha bloodline, he doesn't suffer the same drawbacks that Uchiha do, like vision deterioration from overuse.
His eyes have transformed into dual-colored pupils thanks to the ultimate pupil, allowing him to wield chakra-based ocular powers without fear of side effects.
Kurogai can now use his Sharingan confidently.
"By the way, the Rinnegan belongs to the Otsutsuki, but the Uchiha have evolved their Sharingan into the Rinnegan as well. Could my Sharingan evolve into the Rinnegan, or will it manifest as a completely new pupil ring in the future?"
Kurogai suddenly recalled the connection between the Sharingan and the Rinnegan. Though distinct techniques, they share a close relationship, and Kurogai was curious to understand more.
He focused his spirit on his ultimate pupil, studying this carefully, and after a while, he slowly opened his eyes.
"The Rinnegan doesn't become a separate pupil ring; instead, it evolves from the Mangekyō Sharingan once it reaches its final form. But there are certain special conditions required."
Kurogai mused, recalling feedback from the ultimate pupil. The Rinnegan is not an independent ring but an evolution of the Sharingan. When the Sharingan reaches its peak, it can transform into the Rinnegan—though the exact conditions remain unclear.
Still, this made sense, as the Sharingan and the Rinnegan have an inseparable link, so Kurogai was not surprised.
"I need to improve steadily from here on. The Sharingan's power is immense, so my next focus must be the third pupil ring."
Kurogai muttered to himself, already formulating a plan. His priority was to enhance the Sharingan's power.
The key to evolving the third pupil ring lies in the mutant gene, similar to the blood he just took from Logan. So, for the next period, he would concentrate on mutants, as they hold the key to advancing his Sharingan.
"In that case, I should take the chance to draw more blood. Maybe it will help strengthen the third pupil ring."
Kurogai glanced at Logan, who was still unconscious. Mutants like Logan were rare, and if he didn't make the most of this, it would be a wasted opportunity. He also wanted to see if collecting more of Logan's blood could boost his Sharingan's abilities.
Without hesitation, Kurogai picked up the knife again, cutting into Logan's skin to draw more blood. After a while, he stopped, realizing it wasn't working.
It seemed every mutant had a genetic limit. Once exceeded, collecting more blood didn't increase the power.
"It's a pity, this approach won't work."
Kurogai sighed. Despite all the blood he had taken, Logan's genetic material was exhausted. It was disappointing—such a valuable source, yet ultimately useless.
"Since it's no longer useful, wake up, Logan," Kurogai said, unbinding Logan's restraints.
Logan slowly regained consciousness, though his legs felt weak from blood loss.
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