Chapter 1
Haruki cast a genjutsu on himself and recalled the most painful thing from his past life.
Studying in senior year of high school.
The fact proved that memories don't disappear; they just can't be recalled for a moment.
As a transmigrator, he had already synchronized with this world without revealing any flaws.
Although the genjutsu only lasted a second, the clear knowledge of senior year biology flooded his mind.
Haruki opened his eyes again.
"Did you just get hit by a genjutsu?"
The person speaking sat in front of him, handsome but with a pale complexion, eyes resembling snake pupils, emitting a cold aura.
His wicked smile perfectly fit the character of a domineering CEO.
Orochimaru.
One of Konoha's Sannin.
His only student.
Yes, Haruki was teaching a class.
He didn't expect to return to his familiar old profession.
But now, he wasn't at the bottom, but at the top, becoming a proud Konoha teacher.
"It's just you and me here, how could I get hit by a genjutsu?"
Haruki held a pointer and tapped the blackboard filled with words, "Now let's review the points from the last lesson. What is a genetic factor?"
Interrupted in his thoughts, Orochimaru licked his tongue and said, "A genetic factor, or gene, is what determines the characteristics and traits displayed by an organism."
"Very good."
Haruki appropriately gave feedback.
He remembered that when he was in class in his past life, his teacher would often praise his... deskmate for correct answers.
If it weren't for the transparent cylinders filled with green liquid, various bizarre body parts, and the unusual smells, the teacher-student atmosphere would be perfect.
Four hours later, Haruki yawned, "I'm so tired, today's lesson ends here."
He never worked so hard in his past life.
Orochimaru glanced at him, stood up, put on medical gloves, and started his experiment without paying attention to him.
What a heartless man, using people and then discarding them.
Haruki raised his eyelids, "Orochimaru, there's homework today."
Orochimaru didn't even turn his head, "What homework?"
"Decoding and modifying the Caged Bird."
"Not interested." Orochimaru refused without hesitation.
"There's a saying that a student who doesn't submit homework isn't a good student." Haruki squinted his eyes slightly, seeing him unmoved, he added, "If the homework isn't finished, no more classes."
Orochimaru couldn't help but frown.
Does this guy think he can do whatever he wants just because he knows a bit?
"Can you?" Haruki asked again.
"I can." Orochimaru answered coldly, "But I need a Hyuga branch ninja."
"Understood." Haruki immediately clapped his hands, and two people came in carrying a stretcher from outside, shaking it, and a young man in Konoha's chunin uniform rolled off.
His forehead bore a green cross mark with two hook patterns.
"You were prepared for this?" Orochimaru's face darkened.
"Coincidence, pure coincidence." Seeing his displeased expression, Haruki explained, "Hyuga Seiya was injured on the battlefield and sent here for treatment."
Orochimaru glanced at Hyuga Seiya.
Sure enough, he was alive.
Hyuga branch ninjas have the Caged Bird curse mark planted at the age of three.
The main family can activate the Caged Bird to torture or kill the branch member.
This fundamentally prevents the Byakugan from being leaked.
But Haruki's unique identity as a medical ninja helped him.
"Currently, our war with Sunagakure is basically over, so you don't have much time left. Delaying too long, and the Hyuga main family will become suspicious."
"No need for your reminder."
Orochimaru moved Hyuga Seiya to his experimental table, ready to start his research.
His time was very valuable and he didn't want to waste it at all.
Whether it was learning the Living Corpse Reincarnation or mastering all ninjutsu, it would take a lot of time.
If it wasn't to gain Haruki's knowledge, he wouldn't even bother with the Caged Bird.
"Then I won't disturb you."
Haruki left sensibly.
Orochimaru's diligence far exceeded any 996 work schedule.
He felt inferior in comparison.
He originally just wanted to be a lazy person.
But unfortunately, the heavens didn't give him the chance.
One day three years ago, he opened his eyes and found himself in the world of Naruto.
The worst part was he wasn't in Konoha, but in the Land of Fire.
With the outbreak of the Second Shinobi World War, his civilian parents were forced to sacrifice, and he also embarked on a path of exile.
It was at this time that he met Tsunade.
Finally, the welfare of a transmigrator arrived.
Ah, it's not Tsunade I mean, but the favorability romance system.
More accurately, it's a hack he bought on a forum while playing a certain 3D girl-raising game.
Its function is simple.
Bind to a female character, increase mutual favorability through interaction events, and receive certain rewards.
Of course, only the first interaction is effective.
No bug-exploiting loopholes exist.
Haruki chose Tsunade.
Chest size doesn't matter, he mainly liked this woman.
And his first reward was Tsunade's medical ninjutsu.
At first, medical ninjas weren't taken seriously.
Tsunade repeatedly suggested to Konoha to include a medical ninja in three-person squads and establish a corresponding training system.
In the early stages, only Haruki supported her.
Because of their shared interests, plus the favorability system, Tsunade became his girlfriend.
There was no blood phobia, and she didn't even know Kato Dan.
Having seen the ruthless wars, he had no fondness for the Naruto world.
Reality isn't a hot-blooded anime.
Recalling the plot of the original story from his past life, he thought long and hard, and concluded that to live a happy life with Tsunade, he must solve the current shinobi world and those red-eye & white-eye people.
Leaving the laboratory, Haruki walked on the streets of Konoha.
Old brick houses, ninjas in green vests, and simple utility poles from the last century.
It made him, a civil servant in the infrastructure, very uncomfortable.
...
"Haruki-sama!"
Nakabayashi Saeko couldn't suppress her excitement and blurted out.
But soon her face showed some apprehension.
They had only met once, and she worried he might not remember her, making it awkward.
"It's Nakabayashi Saeko."
Haruki saw the greeting mature noblewoman, elegance and nervousness coexisting on her delicate face.
He thought for a moment and called out her name.
"Haruki-sama actually remembers me?" Saeko's beautiful eyes were full of surprise.
"Of course, I remember your valiant performance on the battlefield in the Land of Rain."
To build his image, Haruki did his homework.
He remembered the names and experiences of many mid- and lower-level ninjas, in other words, no one understood ninjas better than him.
He took advantage of the shinobi war's popularity to market himself.
He set three keywords referencing the future Yellow Flash, Namikaze Minato.
Sunny, gentle, and highly skilled in medical arts.
Making himself a perfect ninja inheriting the Will of Fire.
Given his current reputation, as long as he didn't commit fundamental mistakes, like vying for the Hokage position, Konoha's Root leader, the biggest scapegoat and mastermind, Danzo Shimura, wouldn't target him.
The precedent was Sakumo Hatake, the White Fang of Konoha.
In a few years, he would commit suicide, unable to bear the criticism after a mission failure.
The hidden intricacies were numerous.
Given Sakumo Hatake's strength, the mission must have been classified. How could it have become widely known?
It must be said, whether it was Hiruzen Sarutobi, the Third Hokage, or Danzo Shimura, their tactics were terrible.
They turned a good card into a mess.
So his small goal was to surpass these two mountains.
Haruki ended his recollection, straightened his clothes, and knocked on the door.
"Tsunade, I'm back!"
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