As Aizen unrolled his scroll, his eyes widened in surprise.
"This, it's a Darkness Release technique?!" he exclaimed.
"Indeed, it is the Darkness Release technique developed by the Second Hokage, Tobirama Senju," Hiruzen confirmed with a smile. "It's perfect for you, Aizen."
"It certainly is," Aizen agreed, taking a deep breath.
Darkness Release was a high-level secret technique, powerful enough to be classified as S-rank. It had two main aspects:
Firstly, it affected the target's mind, causing them to lose sight and become trapped in an illusion of darkness. This illusion alone was strong enough to be considered a top-tier genjutsu.
Secondly, and more importantly, this technique could manipulate water molecules in the air to refract light, creating an actual environment of darkness. This was a secret and forbidden technique that operated at the molecular level.
Compared to Aizen's previous attempts to manipulate light using fog or water, this was far more advanced. This darkness, created by controlling water molecules, couldn't be dispelled by ordinary S-rank Wind or Fire Release techniques.
Combined with the mental deprivation of sight, it was a devastating technique.
Tobirama Senju had developed this powerful jutsu specifically to counter the Sharingan of the Uchiha clan.
However, the chakra control required for this technique was incredibly demanding. Thus far, only Tobirama himself had mastered it.
But given Aizen's exceptional chakra control abilities, Hiruzen believed that Aizen would be able to learn it.
Moreover, if combined with his illusionary mist, the technique could unleash incredible power. This would significantly enhance Aizen's combat effectiveness.
Minato, on the other hand, was practically bouncing with excitement.
He had received a sensory secret technique developed by Tobirama Senju. In the original timeline, when Orochimaru had summoned the reanimated Hokage, Tobirama had immediately sensed a massive chakra within Konoha Village upon declaring himself a sensory ninja.
Minato had also sensed this power immediately and deduced that it was the chakra of Naruto Uzumaki after he gained control of the Nine-Tails.
For a ninja, possessing a powerful sensory technique was far more valuable than mastering a powerful offensive jutsu. Aizen's own spiritual network had proven invaluable in previous battles.
Sensory secrets were extremely precious and not easily obtained. Even Jiraiya, Minato's teacher, had learned his sensory technique from Mount Myōboku – a natural energy-based technique passed down in secret. However, it involved the manipulation of natural energy, which carried significant risks.
Therefore, Jiraiya hadn't dared to teach it to Minato too early. Minato's current lack of sensory abilities was a weakness.
Hiruzen Sarutobi had proven to be quite reliable. The techniques he bestowed upon Aizen and Minato were secret techniques specifically chosen to complement their respective shortcomings. This was far more beneficial than simply giving them powerful jutsu.
"Thank you, Lord Hokage!" Minato expressed his gratitude.
Aizen echoed Minato's sentiment, though his sincerity was questionable.
"Haha, it's nothing. Why are you two being so polite to your sensei?" Hiruzen laughed.
Aizen and Minato smiled politely in return.
"There's more," Hiruzen continued, his tone suddenly turning serious.
"Oh?"
Aizen and Minato were both intrigued, their eyes filled with curiosity.
"This technique is also a unique secret technique developed by the Second Hokage. Its power is extraordinary! It's so difficult to learn that neither your teacher nor I have been able to master it," Hiruzen explained with a solemn expression.
Minato's eyes widened in shock, and even Aizen's pupils contracted slightly.
Could it be, that jutsu?
Aizen's heart raced with anticipation as he considered the possibility.
Satisfied with their reactions, Hiruzen nodded. He rose from his desk and said, "Due to the importance of this technique, I cannot simply transcribe it for you to study. I must personally take you to the Scroll of Seals storage and allow you to observe and learn directly."
With that, Hiruzen led the way out of the Hokage office and into the corridor.
Aizen and Minato followed closely behind.
After passing through a heavily guarded corridor, the three arrived at the chamber housing the Scroll of Seals. Upon entering, their eyes were immediately drawn to the massive scroll, containing numerous dangerous and forbidden techniques.
Aizen made a mental note to revisit this place in the future, when the opportunity presented itself, to thoroughly examine the scroll's contents.
Unbeknownst to Aizen, Hiruzen Sarutobi was already performing a special unsealing technique to remove the restrictions on the scroll's techniques. He located the specific jutsu he had in mind and unrolled it before Aizen and Minato.
"...Flying Thunder God Technique?!" Minato muttered under his breath, reading the name of the jutsu on the scroll.
At this point, he had no idea of the technique's true power, nor the immense impact it would have on his future.
"As expected, this is the jutsu that will earn Minato Namikaze the title of Yellow Flash," Aizen thought to himself.
"This is a space-time ninjutsu developed by the Second Hokage. Its capabilities are," Hiruzen began to explain the jutsu.
As Hiruzen detailed the incredible and seemingly impossible abilities of the Flying Thunder God Technique, Minato's jaw dropped, his face flushed with a mix of surprise and excitement. He stared intently at the scroll, his heart filled with longing for this jutsu.
Aizen also feigned enthusiasm.
Hiruzen merely smiled at their reactions, unfazed. He recalled how he, Danzo, and Orochimaru had all displayed similar expressions upon first encountering the Flying Thunder God Technique.
However, none of them had been able to master it.
...
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