[Naruto + Time Travel + System]

A physics graduate student is transported into the world of Naruto, becoming a member of the Uchiha clan on the eve of their massacre. Uchiha Ryo awakens the [Entry System] and begins to use science to revolutionize the ninja world.

The Great Fireball, equipped with [Nuclear Fusion], is a small sun rising in the palm of your hand; the Chidori, equipped with [Electromagnetic Cannon], is a beam of judgment piercing the sky; the Flying Thunder God, equipped with [Space Fold], makes the ends of the earth seem near.

As terms such as "quantum tunneling," "information disruption," and "the law of entropy increase" are unlocked, the so-called bloodline limits and the Sage of Six Paths are nothing more than old legends waiting to be deconstructed.

(Although the background of this book is Naruto, the protagonist is Uchiha Ryo, and it is a completely new storyline.)

Bringing RC cells to the world of One Piece, what kind of sparks will fly when Kagune and Haki are combined? Feather Kagune: Unstoppable in flying attacks and mass destruction; Armor Kagune: Unparalleled defense covering the entire body; Scale Kagune: Immortal body wrapped around the body; Tail Kagune: Powerful and deadly weapon!

[Endless battles, sea supremacy, aim for the strongest]

If Blackbeard had taken Luffy's Nika Devil Fruit, Ace had been rescued, and Whitebeard hadn't died at Marineford, what would the future of the world have been like?

On the eve of the summit, an unlucky soul who had traveled from another world was devoured and merged with Douglas Barrett.

The lives of the devil's heirs took a different turn from that point on.

"The Paramecia-type Fusion Fruit allows the user to arrange and combine any object, causing them to fuse. It can also fuse any inorganic matter it touches with its own body to create desired transformations!"

Cells can arrange and combine to become ultimate life forms, ever-changing!

The arrangement and combination of matter—this world is a sandbox game in your hands, and you are the creator!

Microscopic particles arrange and combine, hand-crafted nuclear fusion, devastating the world!

Impel Down is in chaos, a mad dragon emerges from the abyss, turning the entire Deepsea Impel Down into a ship to fight on the summit!

In the Marineford War, a Gundam was launched, and Marineford was sunk with a single shot!

In the new world, we will conquer all and let the name of the Demon God resound throughout the seas!

Bai Ye traverses the Swallowed Starry Sky, only to discover that countless versions of himself have simultaneously transmigrated to various corners of the Swallowed Universe, each with different identities, races, and starting points. Without any cheat codes, he can only rely on sharing the talents of his many selves to seize opportunities in different places, gradually becoming the strongest in the universe. Earth Bai Ye: I possess Earthling blood. Although my growth is slow in the early stages, as long as I survive until the extraterrestrial battlefield, I have a chance to obtain the Star Tower! Demon Bai Ye: I reincarnated as the "Time-Space Nightmare Beast," one of the eighteen royal families of the Demon Clan. Upon adulthood, I am already a Domain Lord, but I am caught up in a conspiracy, facing a life-or-death crisis from the very beginning. Insect Bai Ye: I reincarnated as an apprentice-level Shadow Insect, sent on a mission by the Insect Queen. I discovered that this Queen seems to be seriously injured; perhaps there is a chance to...

Jiang Yi transmigrated to the Douluo Continent, but his martial soul was still the most useless Blue Silver Grass, with no soul power whatsoever. What should he do? Although the Sun Moon Empire hadn't yet launched a war, and the Douluo Continent was at peace, everything was relatively calm. However, even without war, survival was still extremely difficult for a commoner without soul power. Just as Jiang Yi was worrying about his future, the customized achievement system awakened. "Host awakens Blue Silver Grass martial soul. Congratulations, host, you have obtained the achievement: Jiang Yi's Blue Silver Grass. Achievement reward: 0.1 level soul power." "Soul power didn't increase for a year. Achievement: Eternal Blue Silver Grass. Reward: Blue Silver Grass shows slight evolution." "Spending 5 years to break through to level 10. Achievement: The most stable soul master in history. Reward..." With these customized achievements, Jiang Yi gradually changed...

A country boy, full of dreams, stepped into the labyrinthine city of Orario, only to be quickly slapped in the face by reality. The city didn't welcome him with adventure and battle; Koya, without a familiar to take him in, was forced to work as a laborer for the Loki Familia. "So this is the hero I'm going to raise?" [Yes, Himeko-san.] "What are you for?" [I can do anything you want, and even things you dare not imagine. So spend money, Doctor!] "Mora? You only need Mora?" [Mora is all you need; this is our contract, Ningguang-san.]

Transmigrating into Douluo Continent, Zhao Wu awakens the "Super Saiyan" martial soul, but is ridiculed as a waste by Grandmaster Yu Xiaogang and almost loses his life as bait by Tang San!

"Trash?" Zhao Wu sneered. With the Dragon Ball cultivation method in hand, he would make the entire Douluo Continent tremble!

The humiliation from Notting Academy, the provocation from the Great Soul Arena, the arrogance of Shrek Academy... He etched all hatred into his very bones!

He crippled Dai Mubai with one punch and sent Yu Xiaogang flying with one kick. In the Soul Master Competition, he single-handedly swept through the Shrek Seven Devils and left Tang San in a sorry state!

...

Transmigrating into Harry Potter, he gains a system that allows him to grow stronger through learning. While young wizards are still struggling with the Levitation Charm, Rock has already mastered the entire Standard Spellbook. Hermione: "His notes are more complete than Mrs. Pince's!" The Weasley twins: "Great Rock! We call you the strongest!" Snape: "Potter! If your potions were even a tenth as good as his..." [Flicker] is maxed out to the Law level, a single [Radiant] Holy Light will crush any dissent. [Levitation] is maxed out to the Myth level, a wave of the hand [Universal Pull] will hold the stars in his palm. When Voldemort brandishes the Elder Wand, announcing his 'Return of the Dead', Rock looks at the densely packed, dazzlingly bright max-level skill panel and silently pulls out the wand he's swung countless times. "Tom, have you ever heard of a spell that falls from the sky... Expelliarmus?"...

(The rating has just been released, so it's rising slowly.)

“As I said, although I am from the Heaven-Defying Sect, I am essentially a person who adheres to traditional cultivation methods. I am not a heaven-defying god.”

"What? You're saying I practice swordsmanship every day without learning any magic or cultivation techniques? How can I become a strong person? Are you cheating?"

"Nonsense. It's all because I want to get closer to ordinary people. Don't talk about cheating or hacking. I'm not that kind of person."

—My Daily Life Cultivating in the Heaven-Defying Sect