If you were to ask Sasuke how he had endured this period, he would only say that he shouldn't have wanted to learn Lightning Release Nature Transformation at the time.
The electrical stimulation during this time felt like torture. Every night when he returned home, his weary expression, as if he had been abused, was always questioned by his brother. Fortunately, everything was getting better.
As the Lightning Chakra stimulated his cellular nervous system, Sasuke noticed a significant improvement in the dynamic vision of his Sharingan. His crimson Sharingan could clearly see all movement trajectories within twenty meters.
Keep in mind, he currently only possessed a single-tomoe Sharingan, with simple observational abilities, at most only able to discern some movements and low-level hand signs.
With this strengthening from the stimulated cellular nervous system, he felt that his current single-tomoe Sharingan was much stronger than a two-tomoe one.
Most importantly, he now felt that his movements were incredibly fast. Compared to before, his speed had definitely increased by more than thirty percent.
Activation Imprint Type One!
As Sasuke formed a few hand signs, faint lightning currents encircled his body.
"Naruto, are you ready?" Sasuke extended his right hand into a fist and asked Naruto, who was not far away.
"Ah! Bring it on!" Naruto looked at Sasuke with a serious expression.
Ever since Sasuke activated this state, Naruto could sense that the threat Sasuke posed to him now was greater than in any previous battle.
"Then let's begin!"
Whoosh!
Before Sasuke finished speaking, his figure vanished, leaving black scorch marks on the ground he passed, with some ashes drifting in the air.
"So fast!"
Naruto's pupils contracted sharply. Whether visually or perceptually, Sasuke's speed was incredibly great. He was so fast that he had no time to react, only able to extend both hands and block based on instinct.
Bang!
Naruto's entire body slid back several meters. He shook his aching arm, hoping to recover from the pain.
Not only his speed, but even Sasuke's attacks carried electricity.
Naruto no longer hesitated, quickly raising both hands to form hand signs.
Shadow Clone Technique!
Bang... Bang...
Two Shadow Clones appeared in the smoke, both looking at Sasuke with cautious expressions.
"Ready? Here I come."
Sasuke, with an arrogant expression, waited for Naruto to finish using his Shadow Clones before speaking.
Shinji, watching from the sidelines, shook his head. Although it was just a training battle, Sasuke's performance was a bit too arrogant. Naruto was not weak.
"Annoying." Naruto responded irritably, then he and his two Shadow Clones quickly started running.
"Trying to confuse my vision?"
Sasuke's Sharingan moved frantically, realizing that everything was just as Shinji had said.
The Shadow Clone was indeed developed to counter the Sharingan's basic abilities, as his eyes saw all of them as solid entities.
Wind Release: Great Breakthrough!
As Naruto's Shadow Clones spread out, the Naruto running on both sides raised their hands to form hand signs and released a gust of wind from their mouth.
Whoosh—
Sasuke, who hadn't had time to move, felt as if his entire body was pinned to the spot. His normally agile body suddenly became as heavy as if several large stones had been placed on him.
The Naruto in front condensed Chakra in his elbows and knees and launched an attack towards Sasuke. He delivered a barrage of strikes directly to Sasuke's face.
"Damn it, Naruto."
Sasuke was forced to counterattack, but due to the Wind Release from both sides, he could only barely block.
Palm Thrust!
The electricity carried by Sasuke's counterattacks greatly restricted Naruto.
Sasuke seized the opportunity, using a Chakra vortex to deflect the force, causing Naruto's entire body to veer to the right.
Being at a disadvantage in taijutsu, Sasuke didn't want to continue clashing with Naruto. He found an opportunity to quickly disperse the two Shadow Clones beside him. He then quickly distanced himself, formed hand signs, and declared: "Fire Release: Flame Bullet!"
Sasuke unleashed Chakra, and with the aid of the small oil bottle, a massive scorching flame bullet flew towards Naruto.
Naruto, in turn, assumed a starting stance, his feet angled and dug into the ground. His left palm faced downward, releasing Wind Chakra, while his right palm utilized the principle of the Rasengan to create a swirling vortex.
Punch: Triple Wave!
Naruto's fists rapidly struck the same point, and as he retracted his fists, his wrists rotated, emitting a vortex.
The Wind Release combined with the swirling vortex formed a shockwave, and a faint tiger head appeared out of thin air.
The surrounding air erupted with the sound of rolling thunder due to the formation of the shockwave. It roared swiftly towards the flame bullet launched by Sasuke.
Boom!
The flame bullet was dispersed by the shockwave launched by Naruto. Amidst the sparks, Sasuke looked on with great displeasure at the spatial distortion caused by the flame bullet's heatwave.
Naruto's figure was there. This type of shockwave attack could currently only be performed by Naruto and Hinata. After all, the physical requirements were too high. Hinata could only use it because she was capable of Chakra Shape Transformation.
Naruto, on the other hand, could only force himself to create the vortex and combine it with Wind Release due to his abnormal recovery abilities.
"Type Two…"
Sasuke gritted his teeth, wanting to once again increase the output of his Lightning Chakra. This time, he was determined to give Naruto a huge shock.
"Alright, stop."
Shinji appeared on the field, raising his hand to stop the battle between Sasuke and Naruto.
Hearing this, Naruto immediately ceased his movements and slowly exhaled a breath of turbid air.
Sasuke, meanwhile, canceled his Chakra output, and the cessation of cellular activation caused him to collapse onto the ground.
Shinji then used Chakra perception to check Sasuke's condition before speaking, "Sasuke, you can't skillfully use Type Two yet, so focus on strengthening your physical body first."
"Yes, sensei."
Sasuke felt a bit fortunate that he hadn't used it. Otherwise, he might have fainted halfway through because he couldn't control it.
"Arrogant Sasuke, your Lightning Release enhancement isn't bad."
Although Naruto's Chakra pathways were a bit sore from his recent techniques, he could still support his body.
"Not good enough yet." Sasuke shook his head and said.
Ultimately, if Shinji hadn't stopped him and Naruto, he would have still lost.
"You two, that's enough." Shikamaru, standing nearby, said with a hint of helplessness.
"With your current strength, let alone Genin, even some clan heirs might not be as good as you. It's just combat training, do you really need to go all out like this?"
Shinji nodded and said, "Don't get carried away and act recklessly. Sasuke, you should be glad that your previous training went well. Otherwise, the cellular activation you just initiated would have been enough to put you out for a few days."
"From now on, Naruto and Sasuke, your weights will be doubled, and your physical training will also increase."
From the recent battle, Shinji could already see the current shortcomings of Naruto and Sasuke. They both had the power of the techniques, but their bodies weren't up to standard, so they couldn't fully utilize them.
"Yes, sensei."