The reason for his urgency was simple.
Sasuke wanted to test this so-called Sharingan Advancement Training Method.
The method for advancing the Sharingan was actually about chakra control.
However, this chakra was usually something no ninja would dare tamper with.
Because this part of the chakra flow is linked to the brain.
A slight mistake in controlling it could turn one into a complete idiot.
So no one would dare meddle with this part of the body.
However, the Sharingan Advancement Training Method recorded how to control the chakra flow in this area.
To be precise, it wasn't just chakra; the method also involved some mental-energy training.
Chakra, after all, is a product of the fusion of physical energy and mental energy.
While physical energy can be enhanced through training, mental energy only increases naturally as one ages.
This is why the amount of chakra a ninja has is essentially decided early on.
Even if training can increase a bit of chakra, the effects are minimal, and no ninja would focus primarily on chakra cultivation.
But now, Sasuke's Sharingan cultivation method even involved mental-energy cultivation.
This was incredibly exciting for Sasuke.
However, the mental energy training seemed to be specifically for the Sharingan.
To begin mental energy training, the foundation required having a three-tomoe Sharingan.
But Sasuke currently only had a two-tomoe Sharingan.
'But given my situation, awakening the three-tomoe shouldn't be too difficult!'
Sasuke had already accumulated a lot, and evolving into the three-tomoe Sharingan wasn't particularly hard.
Now, with the help of the Sharingan advancement method, he carefully began guiding the chakra in his mind towards his eyes.
Sure enough, the next moment, Sasuke felt a strange burning sensation in his eyes.
However, this feeling wasn't painful. Instead, it made Sasuke feel as though his Sharingan was gradually purging impurities.
It felt like it was becoming better.
This sensation was so pleasant that Sasuke enjoyed it.
Behind his closed eyelids, it felt like there were countless ants crawling, as his Sharingan began to change.
This process of change wasn't painful at all; instead, it felt incredibly comfortable.
Sasuke found it truly amazing.
He carefully followed the method's instructions, guiding the chakra in his mind towards his eyes, one wave after another.
Finally, after Sasuke had guided the chakra countless times, he suddenly felt like his eyes had been reborn.
He abruptly opened his eyes and looked at himself in the mirror.
Three tomoe slowly spun in his eyes.
'So… it's really a three-tomoe Sharingan?'
Sasuke glanced out the window; it was still early evening.
It hadn't been long since he returned home, and he had only trained for an afternoon, yet he had successfully unlocked the three-tomoe Sharingan.
If he continued training, unlocking the Mangekyo Sharingan wouldn't be a problem, right?
It probably wouldn't take too much time.
The Chunin Exams were less than a week away.
Could he unlock the Mangekyo Sharingan before the Chunin Exams?
Sasuke felt a bit excited.
However, unlocking the Mangekyo Sharingan was not that simple.
The three tomoe were just the foundation of the Sharingan.
Moreover, awakening the three-tomoe didn't require any special conditions, as long as the bloodline concentration was strong enough, it would naturally lead to the three-tomoe Sharingan.
But unlocking the Mangekyo Sharingan was a different story.
In the original story, a strong emotional stimulus was required to awaken the Mangekyo Sharingan.
But for Sasuke now, even without a stimulus, the Sharingan cultivation method would allow him to unlock the Mangekyo Sharingan.
However, it wasn't that simple.
While guiding chakra into his eyes, Sasuke also had to synchronize mental energy.
Multitasking wasn't hard for Sasuke, but the amount of mental energy needed to unlock the Mangekyo Sharingan was substantial.
But Sasuke was willing to try. He was eager to see what it felt like to cultivate the Mangekyo Sharingan.
Just as Sasuke was about to sit on his bed and begin meditating to train, the window suddenly opened.
Sasuke looked up towards the direction of the window.
At the same time, Kakashi, who had just landed, turned to look at Sasuke.
When their gazes met, Kakashi froze.
He stared at Sasuke intently.
'Three… Three tomoe!'
"That's why Sasuke ran off so quickly after the battle he must have awakened the third tomoe of his Sharingan!"
Awakening the three-tomoe Sharingan after a fight wasn't really something to be overly shocked about!
"Kakashi-sensei... do you need something?"
Kakashi, suddenly pulled from his thoughts, responded, "Congratulations on winning the match!"
"Is that why you're here? It was just a match against a brat. Beating him is nothing to congratulate me about."
...
Sasuke's indifferent attitude left Kakashi speechless.
Calling the opponent a brat? He was actually a year older than Sasuke!
But it didn't matter; at least Sasuke didn't care too much about winning or losing.
"Come with me! To celebrate your victory, today, I'm going to teach you a special ninjutsu!"
Without waiting for Sasuke's objection, Kakashi grabbed him and led him away.
After dragging Sasuke to a secluded spot and letting him down, Kakashi immediately started: "You did well today, so I've decided to teach you my Chidori!"
"As for the power of the Chidori, you've seen it last time, right?"
"This jutsu is pretty impressive, don't you think?"
"Sensei, I wanted to teach you this last time, but you insisted on learning swordsmanship..."
"Sensei, is this what you wanted to teach me?"
Suddenly, Sasuke raised his hand, and violent lightning began to gather in his palm.
In an instant, the sound of thousands of birds screeching filled the air.
Kakashi looked at the Chidori in Sasuke's hand: "Yes, this is the jutsu..."
But as Kakashi spoke, he suddenly realized something wasn't right.
"How did you…"
"I saw you use it once last time, so I tried developing it on my own, and it worked."
Kakashi froze for a moment.
"You developed it yourself?"
Wait! Sasuke hadn't even used hand seals before... he just… directly... used the Chidori...
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