Shinsei took out two brand-new syringes, drew the pale green liquid from the test tube into one syringe, and drew the anesthetic into the other syringe.
Shinsei, holding up a syringe filled with a pale green liquid, asked, "It'll hurt a lot, do you need some anesthesia?"
Sasuke swept his arm away and said coldly, "I don't need that kind of thing. Just bring it on."
"Really? It must hurt a lot." Shinsei said earnestly, looking genuinely concerned.
Sasuke stared at his arm and said coldly again, "I don't need it!"
Shinsei smiled and brought the syringe close to Sasuke's shoulder, then inserted the needle.
As the pale green liquid entered Sasuke's body, the veins in his arms bulged, he clenched his teeth, and his face turned bright red.
The pain throughout his body intensified, and the tension in his body made the veins on his neck stand out.
Shinsei, holding up the anesthetic injection, asked with a concerned expression:
" Sasuke, Sasuke, are you sure you don't need anesthesia? You look like you're in a lot of pain."
"I! Don't! Need!" These three words burst from Sasuke's mouth one by one, the immense pain almost destroying his consciousness.
A red six-pointed star appeared in his eyes, and he could no longer hold back, letting out a painful scream:
"Ah!!!"
Sakura pulled Sasuke into her arms, snatched the anesthetic injection from Shinsei's hand, and injected it into Sasuke's other arm.
Seeing Sasuke's pained expression, Sakura felt her heart bleeding. She yelled at Shinsei:
"You did it on purpose!"
Shinsei shrugged, indicating his innocence. "But I asked several times!"
Darkness enveloped Sasuke's eyes; he closed them and completely lost consciousness.
When Sasuke woke up again, he found himself lying on a table.
He sat up and watched the two people in the room operating the huge machine. His body was filled with a strange yet warm energy, and a special kind of energy Chakra surrounded his eyes.
Sasuke quietly opened his Mangekyō Sharingan and found that his previously diminished vision had returned to normal. He also felt a pleasant surprise at the abundant Chakra within his body.
Sasuke clenched his fist involuntarily. Was this power?
Then he couldn't help but clutch his stomach and burst into laughter.
Hahahaha!
Sakura ran over and checked his body:
" Sasuke, how are you feeling?"
Sasuke didn't reply, but just looked at his fist and said coldly:
" Uchiha Itachi!"
Shinsei raised an eyebrow. Was he having another episode?
However, he already had considerable experience in treating members of the Uchiha Clan.
He stepped forward, placed his hand on Sasuke's shoulder, and asked warmly:
"How's it going? Your Chakra has increased a lot, hasn't it? Would you like me to help you get used to your new superior power?"
To Shinsei's surprise, Sasuke didn't immediately agree. Instead, he looked at Shinsei with some wariness in his eyes. However, after thinking for a moment, he still agreed:
"Good".
A moment later, Shinsei finished meditating, placed his hand on Sasuke's shoulder, and the two disappeared into the basement.
In a clearing in a forest, two boys appeared in the center of the area.
Instead of launching a preemptive attack, Sasuke obediently formed the Seal of Confrontation.
Shinsei quickly returned the greeting, indicating that Sasuke wasn't actually having an episode, but genuinely wanted to familiarize himself with his power.
Under the sunlight, Sasuke's skin appeared slightly paler than before, but it was still within the normal range.
The Hashirama Cells used to prepare the cell solution have been degraded to many versions and do not have the same strong erosive power as the genuine Hashirama Cells.
Similarly, the increase in Chakra is not as significant as in the normal version.
Of course, for ordinary people, this level of improvement is equivalent to a several-fold increase in Chakra.
Facing Shinsei, Sasuke dared not be careless and immediately activated his Mangekyō Sharingan.
He rushed forward first, wielding a blue Chakra sword, and slashed at Shinsei.
The immense Chakra within him finally allowed Sasuke to use this Ninjutsu Without Hand Seals as a regular Ninjutsu.
Sasuke had previously planned to use an ordinary longsword as his regular attack, but facing his frequent sparring partners, all of whom possessed superhuman Superhuman Strength, an ordinary longsword was as fragile as paper.
Shinsei also quietly activated his Three-Tomoe Sharingan. Although his Sharingan was not as powerful as Sasuke's, Shinsei was always able to easily dodge Sasuke's attacks thanks to the advantages of Sage Mode.
The two men's Isshiki move shattered the surrounding ground.
Sasuke could no longer hold back. Purple Chakra surged from his body, enveloping his entire body and forming a half-skull several meters tall.
Susanoo!
Since he was helping Sasuke familiarize himself with the power, Shinsei didn't choose to smash Susanoo pieces with one punch, but instead calmly dealt with him.
After being repeatedly tricked by Shinsei, Sasuke couldn't help but increase his Chakra input. Meridians and flesh grew on his half-skeletal body, which was covered with a Chakra Cloak.
This is the second state of Susanoo!
Shinsei, somewhat excited, couldn't resist stepping forward, swinging his fist, and forcefully slamming it towards Susanoo.
A loud crash!
The towering Susanoo was blasted away by the immense force, and the cracks covering its entire body finally gave way, causing it to shatter.
Shinsei quickly stepped forward Sasuke up. "Sorry, I used a little too much force."
Sasuke sat on the ground, covering his eyes, with trickles of blood flowing from his eye sockets. But then, a warm power within his body enveloped his eyes, soothing the pain.
Sasuke's eyes were somewhat lost. He looked up at the sky and asked:
"Is there a big gap between me and that person?"
After thinking carefully, Shinsei replied, "You are no match for him yet."
Upon hearing Shinsei's words, Sasuke's eyes dimmed slightly, but then hardened again.
Shinsei did not deceive Sasuke in any way.
Even though Sasuke also possesses the Mangekyō Sharingan, and his Chakra reserves have now caught up with, or even surpassed, Uchiha Itachi's, level.
However, Uchiha Itachi's greatest strength was not his Mangekyō Sharingan, but his battle wisdom.
Some people have innate combat wisdom; they can learn from experience in battle, apply what they've learned to other situations, and combine small details to create advantages that benefit them.
Another type of person can only grow through constant battles, accumulating their own combat experience.
It's impossible to say which one will ultimately be stronger. However, given the same number of battles, the combat experience gained from the former will completely overwhelm the latter.
Even though Shinsei disapproved of Uchiha Itachi's slaughter of his own clan, he had to admit that Uchiha Itachi's combat intelligence was second to none in the entire human world, perhaps even the strongest.
Shinsei placed his hand on Sasuke's shoulder, and the two disappeared into the ravaged landscape.
Leaving the physically and mentally exhausted Sasuke to Sakura is a better job than leaving comforting someone to a girl.
He wanted to use the time he was in Sage Mode to find Naruto.
It's time to take the dog for a walk and let Nine-Tails vent its pent-up anger.