Land of Fire, Konohagakure.
Kakashi woke up faintly, smelling the thick scent of blood in the air, which was unpleasant and made his stomach acid churn.
Why is there a smell of blood? Did I get into a car accident on my way home from work?
No, that's not right. In my last memory, I hadn't even had time to leave the office...
With a puzzled heart, Kakashi slowly opened his eyes, only to see a man wearing a kimono who had committed seppuku lying in front of him!
Kakashi's upper body sprang up instantly, his feet pushing off the ground as he retreated desperately until he hit the base of the wall!
"Holy crap! What's going on..."
Looking around, he was currently in a traditional Japanese-style room.
And the man who had scared him was lying motionless on a blood-stained tatami, his abdomen cut open in a cross shape, a gruesome sight.
Kakashi couldn't bear it and began to vomit uncontrollably.
After a long time, feeling like he had vomited his guts out, Kakashi wiped his tears, walked out of the room, and took a deep breath before feeling like he had come back to life.
Where is this?
As if hearing his confusion, a large amount of unfamiliar memories suddenly flooded in, as if several years had passed in an instant!
Kakashi Hatake, five years old, a new student at the Ninja Academy in Konohagakure of the Land of Fire, his talent for Ninjutsu already starting to show.
His father was a Konoha elite Jonin, originally a high-profile candidate for the next Village leader.
Just because during a secret mission, he abandoned the mission to save his companions, causing losses to the interests of the Land of Fire.
Consequently, he was cursed and loathed by a large number of villagers, and finally unable to bear the humiliation, he chose to commit suicide!
"Did I transmigrate into the Naruto world and become Kakashi-ge?"
Kakashi felt a bit of a headache.
In his previous life, he was a programmer.
Originally working overtime for three consecutive months at a certain company, enduring the devastation of 007, he finally made it until the product went live.
As a result, just as he was about to submit an application for time off, he lost consciousness.
When he opened his eyes again, he was here.
So I've arrived on the day the White Fang of Konoha committed suicide, which is during the period after the Second Great Ninja War and before the Third Great Ninja War.
He tried hard to recall the Naruto plot, combining it with the memories inherited from the original body, and soon understood his current situation.
The Ninja World, a place full of blood and slaughter!
Constant disputes between major nations, and the war machines are the Ninja organized into Ninja Villages!
The so-called Village is essentially a mercenary organization that works for money.
And the Konohagakure he is in is the strongest existence among the Five Great Ninja Villages.
With the Third Hokage's faction of Konoha higher-ups as the political core.
With Ninja clans represented by the Uchiha and Hyuga as the main fighting force.
With many civilians as the foundation of the Village.
This is the current main composition of Konoha.
However, compared to these, what Kakashi is most worried about now is how to hide the fact of his soul transmigration!
If anyone notices anything unusual, he might be sent to the Konoha Interrogation Room as a spy!
Thinking of Ibiki Morino's scarred and hideous face, along with his masochistic traits, if the current head of the Torture and Interrogation Force is of the same style...
Kakashi felt his scalp tingle and shuddered!
"Can't delay too long, the White Fang's death will be discovered sooner or later, I can't appear indifferent..."
Kakashi barely suppressed the fear in his heart and thought of a way to protect himself.
In the Konoha residential area, villagers were walking on the road when they suddenly saw a silver-haired child stumbling out of the Hatake family house, looking terrified, and collapsing to the ground after just a few steps!
"Look, what's wrong with this child?"
"Ah, I recognize him, isn't this Kakashi from the Hatake family?"
"Wait, why is there so much blood on him!"
The surrounding villagers gathered around, and the nearby patrol Police Force was also alerted and rushed over.
One of them maintained order at the scene while two others rushed into the room to check.
"Captain, White Fang is dead, looks like suicide."
The two who quickly investigated everything came out to report.
"This is a big deal, I'll report to the Hokage immediately. You take the child to the hospital, the rest of you protect the scene, don't let anyone else near!"
The man called the captain made a prompt decision.
"Yes!"
"The Police Force is on duty, everyone unrelated disperse, don't obstruct official business!"
...
Konoha Hospital.
Lying on the hospital bed, watching the Third Hokage leave, Kakashi breathed a soft sigh of relief.
The first hurdle is finally over!
The Third Hokage didn't notice anything unusual; he just expressed his grief over the White Fang's passing, said some comforting words, and promised that the White Fang's name would be carved on the Memorial Stone as a hero, and he would also enjoy the treatment of a martyr's orphan.
If it were truly the young Kakashi, he would probably be moved by the Third Hokage's words, right?
Unfortunately, knowing Uzumaki Naruto's tragic childhood experiences, he instinctively resisted the Third Hokage's way of winning people's hearts.
"System?"
After a moment of silence, taking advantage of being alone, Kakashi spoke tentatively.
The system ignored him.
"System... Big Brother System?"
The surroundings remained silent.
"Tmall Genie?"
"Xiao Du Xiao Du?"
Kakashi no longer held much hope...
[Hey, I'm here~]
"Holy crap, System, you finally showed up!"
A voice suddenly rang out in his mind, and Kakashi felt his spirits lift!
Great, as long as I have a cheat, won't I be punching the Ōtsutsuki, stepping on Six Paths Madara, and easily reaching the peak of the Ninja World!
"System, what functions do you have? Is it a starting sign-in that gives a Rinnegan, or a roulette draw for Ōtsutsuki bloodline?"
Kakashi was full of expectations for this!
[Neither. This system is tailor-made based on the host's own conditions; the functions will be very fitting for the host.]
Exclusive customization!
It sounded very high-end and classy, and Kakashi was delighted.
[After possessing this system, any technique seen by the host will be directly mastered.]
"Awesome, then can I directly copy Amaterasu, Tsukuyomi, Kamui, and Kotoamatsukami!"
Kakashi immediately realized the heaven-defying nature of this system!
[No, you can't.]
[According to the system's classification, Bloodline Limit can be roughly divided into two categories: constitution and nature transformation.]
[Constitution types: the user's body undergoes obvious mutations, such as the Sharingan, Byakugan, and Shikotsumyaku, which belong to the types that cannot be copied.]
[Nature transformation types: techniques released after fusing two or more attributes, such as Dust Release, Wood Release, Lava Release, and Ice Release, can all be successfully copied.]
"Good grief, first you exclude the two correct answers, Sage Body and Sage Eyes?"
Kakashi was very disappointed; after all, which transmigrator in the Ninja World doesn't have the dream of piloting a Gundam?
[Additionally, for a copied technique to be successfully released, the host's own abilities must also reach the minimum standard.]
[Such as Chakra volume, physical body, mental strength, etc., must all be cultivated by the host themselves.]
The system added.
"Emmm, just this? So it's just saving the Chakra consumption of the Sharingan compared to the original body?"
Kakashi was quite speechless.
However, after pondering it carefully again, he suddenly realized it wasn't that simple.
In his previous life, he had seen a theory online that no Bloodline Limit can be achieved solely through post-natal learning.
Otherwise, the Third Hokage, the Professor of the Ninja World who was born with all attributes and proficient in the Five Natures, should have at least been able to develop one Bloodline Limit!
If one says the Third Hokage didn't put effort into research...
Then Kakashi, who also mastered all attributes and possessed the Sharingan, still couldn't copy Yamato's Wood Release!
As for that one exception, the Third Tsuchikage who "learned" Dust Release later in life, he was likely a distant relative of the Second Tsuchikage and inherently possessed the potential to awaken Dust Release!
After all, being in the same Village, their ancestors three generations back might have been one family.
If that's really the case, then with the system, he would have infinite possibilities!
"I have one more question."
"Can I fuse the Bloodline Limit I've already mastered?"
After thinking for a while, Kakashi raised his doubt.
[Yes, the host can fuse Bloodline Limit.]
I see, then wouldn't I have a chance to master the Bloodline Net?
Kakashi was delighted.
Bloodline Net, that's an ability obtained only after Ōtsutsuki Kaguya ate the fruit of the God Tree, the ultimate on the path of Bloodline evolution!
Although the system's functions are limited and cannot copy constitution-type Bloodline Limit, causing him to lack the most crucial puzzle piece.
But don't forget, in this world where the technology tree is skewed, biotechnology is exceptionally advanced!
If you ask why, then we have to mention our mad scientist, Orochimaru!
Orochimaru masters core technology!