After all, he had already practiced countless times within the illusion, enduring unimaginable suffering.
One had to know that within the illusion, aside from avoiding physical injury, the mental pain was not diminished in the slightest.
In fact, because it was a spiritual body, the senses were even more delicate and sensitive, making the pain far clearer and more intense.
Having endured so much hardship and trained so relentlessly, Sasuke was filled with unwavering confidence.
He firmly believed that his efforts would not be in vain and that he would certainly succeed.
Calming his mind, Sasuke focused intently on controlling and mobilizing the chakra within his body, guiding it carefully to flow across his flesh.
Under the watchful gazes of everyone present, faint traces of lightning began to flicker and slither across Sasuke's body.
Gradually, the lightning grew denser, and the sound of crackling thunder slowly intensified, echoing endlessly in the air.
In the end, the electric light completely enveloped Sasuke's body, and the sharp crackling transformed into a low, steady hum.
Seeing this, Arata, who had been guarding him closely, finally let out a long breath of relief.
He knew that Sasuke's first real-world attempt had succeeded.
From here on, Sasuke could independently operate Thunder Release Armor, using it to stimulate and strengthen his physical body, steadily enhancing his speed and reflexes.
Arata then noticed Mikoto standing nearby, her gaze fixed nervously on Sasuke, and walked over.
When Mikoto saw Arata approaching, it was as though she had grasped the final lifeline. She hurriedly asked, her voice trembling, "Arata-kun, how is Sasuke? Is he alright?"
Seeing her anxious expression, Arata quickly reassured her. "Don't worry, Sister Mikoto. I've been watching closely. I taught Sasuke a secret technique, and he has successfully mastered it."
Upon hearing this, Mikoto became flustered and stammered, "A Lightning Release secret technique? He succeeded? Th-this… that…" Even her hands began gesturing unconsciously.
Mikoto was no novice. Although her own strength was limited, as the wife of the Uchiha clan leader, she had been deeply influenced over the years, and her knowledge surpassed that of ordinary jōnin by far.
What was a secret technique? The very reason such techniques were called "secret" was to distinguish them from ordinary ninjutsu.
Every secret technique shared one trait.....they were extraordinarily difficult to cultivate. Some people, even after training for an entire lifetime, could never master them.
So why did so many people persist in practicing them? Because the harder a secret technique was to cultivate, the more powerful it became.
For top-tier secret techniques, once mastered, they could become a lifelong reliance, guaranteeing a stable and powerful future.
Mikoto knew of several secret techniques. While immensely powerful, their cultivation difficulty was almost absurd, and in many cases, the training process itself was life-threatening.
This was precisely why she felt so at a loss after hearing Arata's words.
From birth until now, Sasuke had always been under her watchful care. If there was anyone in the world who knew Sasuke best, it was her.
And yet, right before her eyes, her son had mastered a secret technique in such a short time and was now actively cultivating it. This caused a strange, almost absurd thought to surface in her heart.
Could it be that her son, Uchiha Sasuke, was actually a once-in-a-generation super genius....one capable of surpassing even Arata and Shisui, perhaps even Itachi? (In her heart, Arata was already a peerless genius capable of crushing all others.)
Noticing that Mikoto seemed to have fallen into deep shock, Arata smiled and comforted her gently.
"Sister Mikoto, don't worry. Sasuke is fine. There are some things I'll explain to you later."
As he spoke, under Mikoto's puzzled gaze, Arata lightly tapped his own eyes twice.
Seeing this subtle hint, Mikoto suddenly understood. It was Arata who had helped Sasuke in a way she could not comprehend. Only then did her heart finally settle.
The two young maids watching from the side were still confused, but neither dared to question Arata.
After all, he was the deputy clan leader. Though he was usually gentle and approachable, that did not mean they would dare overstep their boundaries.
Moreover, this matter involved a secret technique.
Even if they did not understand what a secret technique truly was, the word "secret" alone told them it was something not to be inquired about, discussed, or spread.
The two exchanged glances, quietly stuck out their tongues, and continued waiting beside Mikoto.
Uchiha Izumi quietly returned inside and brought out a stool for the clan leader's wife. News of Mikoto's pregnancy had long spread throughout the clan.
Everyone knew that in order to set a good example, strengthen the Uchiha clan, and expand its bloodline, the clan leader's wife had taken the lead and conceived a third child.
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