(No system + non-Uchiha protagonist + ninjutsu development + reasonable logic)

I was reborn into the world of Naruto, but I didn't become a member of the Eye Legend. But without the system, how can I live?

Fortunately, I still remember the cultivation of immortals in my previous life. Watch me become a legitimate immortal of the human race! Develop ninjutsu, develop storm escape, and develop the immortal mode of the human race! I can become the strongest in the ninja world!

If Uchiha can implant Hashirama's cells, then as a descendant of the Senju, can't I get a Sharingan?

This book does not involve Boruto: Naruto Next Generations.

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Naruto YYDS.

【Time Travel】+【Anatomy】+【Scientific Research】+【Anti-Routine】+【Behind the Scenes】

Medical student Bai Zhu died suddenly after staying up late, his spirit traveling to Konoha's morgue, where he became a Genin who handled post-war corpses. Accidentally activating his gift of "Dissection is Understanding," he was able to extract ninjutsu, bloodline inheritance, and even soul memories simply by dissecting ninja corpses! When ninjutsu became measurable parameters and bloodline limits became editable genetic sequences, the entire ninja world suddenly changed!

"Orochimaru, your Snake Shedding Technique data is outdated. This is my 'Programmed Cell Death Intervention Plan'."

"Uchiha Itachi, forget about love and peace. Could you please tell me about the report on the correlation between Mangekyō pupil power and optic nerve degeneration?"

"Princess Kaguya? Excuse me, but under my scalpel, all beings are equal!"

Bai Shu's goal is simple: to establish the most comprehensive "Human Body Database" in the ninja world, to deconstruct chakra with a scalpel, and to crush all theories of bloodline and fatalism with the iron fist of science! I, Bai Shu, Konoha's undertaker, will bring a top-down technological revolution to the ninja world!

Hiro, a god-level killer who longed for family affection in his previous life, traveled to the world of Hunter x Hunter and became the eldest son of the Zoldyck family.

As a natural user of Nen, he awakened the Nen ability [Killer Destiny] and became stronger as he completed assassination missions.

In order to make up for the regrets of his previous life, Hero made a [pledge and restriction]:

"I swear, as long as my family is spared from all unnatural deaths—"

"I will kill even the most powerful person in the world for you to see!"

At this point, the oath is fulfilled.

From then on, Hiro was trapped in the assassination space every day and had to kill powerful mission targets before he could return to reality.

Although the cycle of death has become a compulsory course for Hero,

But every morning,

The Zoldyck family always sees the sunny boy busy in the kitchen.

A delicious breakfast cooked by him personally with a fragrant aroma.

Ilmi: "Brother, stop cooking and beat me!"

Mi Ji: "Why is my breakfast so small? Brother, I don't want to lose weight!"

Killua: "Brother, I'm hungry, I want to eat!"

Alluka & Nanica: "Brother, thank you for letting everyone accept me!"

Kurt: "Big brother dotes on Alluka so much, it must be because he wears women's clothes, I can do that too!"

Xiba: "Eat your fill and train hard! Don't think you can slack off just because you have your big brother as your backer!"

Kijo: "Ahh, the Zaku helmet my son made for me is so cool!"

Geno: "Grandpa, you can die with your eyes closed."

Maha: "Bullshit, if you want to die, you old grandson should die first. I haven't had enough of my precious great-great-grandson's delicious food yet!"

......

On the tourist bus heading to Kukuru Mountain, Xi Suo smiled: "Big Apple, I'm coming to see you~"

Kyle's third time traveling through time brings him to a world far more bizarre and dangerous than those of One Piece and Naruto. The painful experiences of his first two journeys, where he died in swords and kunai upon inheriting his memories, taught him this: if you're not strong enough, you die! Awakening his Nen ability at the age of seven, he possesses the power to turn everything around—the Book of the Unique World Resonance! When Gon needs strength to challenge Hisoka, Kyle extends an invitation: "Sign a contract. I'll grant you the opportunity to train in another world, and you'll grant me the power to reflect back." Thus, the Hunter world's strongest pirate group sets sail, and an organization more powerful than the Akatsuki in the Ninja World is born. But Kyle harbors a deepest secret: does this seemingly fair contract reflect the fruits of training, or does it reflect the fate of the contracted... themselves? As the bonds of the powerful from three worlds intertwine, what awaits them is the path to the highest...

Accidentally crossing into the world of Hunter x Hunter, Link discovered that he was an extremely rare natural Psychic user!

A Pokémon Master with Psychic ability can automatically breed Pokémon just by traveling or participating in an event.

As he traveled to one place after another, his Pokémon team became larger!

The "Super Queen" with both beauty and strength - Gardevoir

The "Purple Fat Man" who can devour all evil - Gengar

There are also countless Quasi-God Pokémon!

…

Unknowingly, Link has become the strongest in many fields in the world!

Standing in front of you now is the world's strongest Psychic Exterminator, the strongest building owner in the Sky Arena, a three-star hunter in the three fields of Ruins, Food and Bounty, and one of the world's top five Psychic users - Link!

In 1984, the acid rain from the seventh garbage mountain in Meteor Street corroded Carl's spine.

When his fingertips touched the ancient pumpkin seed, the miracle called Mole Manor appeared in him -

in this sinful place where even death is recycled:

he used [Bomb Pomegranate] to blow up the Presbyterian Church, but the shrapnel burst out pomegranate seeds that can cure terminal illnesses. He

presented [Dream Grapes] at the Phantom Troupe's dinner party and watched Feitan's face shed tears of emotion.

He replaced the poison order of Zoldyck with [Repentance Tulip], and the golden rain of atonement fell from the Kurukulu Mountain.

When Carl planted the Tongtian vine in the Dark Continent, everyone realized that

what he was selling was never fruit, but a gift that was more terrible than plunder -

[Eat my fruit, you...

Hunters, the rulers of the Hunter Continent, are a group of people with licenses to kill. Becoming a hunter requires no special qualifications; simply passing an examination is sufficient. Everyone in this world aspires to be a hunter, for only by becoming a hunter can one explore various spiritual realms, secret realms, magical realms, and demonic realms, capturing spirit beasts, rare beasts, magical beasts, and monsters, obtaining various treasures, rare items, secret artifacts, magical weapons, and demonic artifacts, and showcasing a wide range of abilities.

This book is also known as "The Patriarch Who Likes Galleons Ran Away with the Potions Master Again" and features two male protagonists.

Severus Snape x Sirod Slytherin (with personal interpretations)

The isolated and helpless potions professor finally met his little rose, a story of black and white intertwining, confusion and fusion.

Upon entering school again, Sirod winked at Severus.

Severus: ...

Later, Sylvie asked, "Professor, do you believe in love at first sight?" while grabbing Severus's sleeve.

(There are parents and children. They are Tom's classmates. They don't like idiots and like Galleon. Severus will not like Lily and will only like Sir Lord.) (You can skip this if you don't like it.)

(Single female protagonist Hermione + growth flow + daily life in Hogwarts) What is it like to have a succubus father?

The protagonist is a little weak at the beginning, but will gradually become stronger, and will solo Voldemort in the later stage.

Professor McGonagall: "Rodrigo is my best student. As his son, you must complete these dozen Transfiguration exams tonight."

Snape: "Rodrigo is my best friend. As his son, you won't be able to sleep tonight until this batch of potions is finished."

Voldemort: "Rodrigo is my most hated enemy. As his son, you must die for me."

...Norman said that he was just a poor student and he just wanted to live a life of leisure.

Hermione, the top student, said: "Your father is so great, you can't be so decadent. Let's memorize this magic analysis book together tonight."

...One day when people asked Norman what drove him to become the youngest recipient of the Order of Merlin, First Class, and to make great contributions to Charms and Alchemy, he shed sad tears.

"I want to thank everyone who has helped me, my teachers, my friends, and my beloved, idiotic father."

This is a story of a son paying off a father's debt.

The father had a wide network of contacts and left a lot of inheritance for his son

…

Rodrigo: "Severus, smile more... smile more"

…

Rodrigo: "Severus, I feel sick. I like someone I shouldn't like."

Snape slowly backed away: "It can't be me?"

"I'm not that sick yet."

[HP Fanfiction] [No female protagonist] Sagres Greengrass is a time traveler. As a member of a pure-blood family in the magical world, his first experience of magic came from a Cruciatus Curse cast by his mother. When he wanted to seek help from his father, he found out that his father was a Death Eater.

In the fifth year after being expelled from Hogwarts, Sagres walked through the salty mist of the North Sea and returned to the ancient castle as a professor.

Imprisonment in Azkaban did not leave him with madness and corruption, but rather a kind of chilling elegance.