One Piece: Alucard the Immortal - Chapter 9: Insane Leveling

Yuzuki thought it was just another pastime from his casework, proofreading a half-finished fantasy webnovel. But when he woke up the next day, he was no longer in his world. He was inside the story… as a disposable extra.The world he now walks is beautiful, brutal, and broken. Its plot is incomplete. And looming over it all is a calamity so catastrophic that even the protagonist would have failed to stop it. Driven only by his cunning and spite towards this twisted fate, his only choice is to stake his existence in a world on the verge of collapse. But how long can a nameless extra outwit the fate of an unfinished novel? How is he going to survive in this ruined world?If the story dies, so does he.“Well, curse the protagonist. Why would I gamble my life on some self-righteous fool who’s just doomed to fall anyway?”#Academy#WeakToStrongMCNo Harem!

He was The Greatest Talent in the Nine Hells Realm.

Shen Zhenyi began to practice his sword when he was four years and two months old.

At the age of seven, he studied the Ten Thousand Sword Sutra. By the age of eleven, he fought against the Yudao in Shangqing Palace. In an instant, he unleashed one hundred and eighty-five sword strikes, making it impossible for anyone to retaliate. The Yudao admitted defeat and deemed him as “The Peerless Genius.”

At the age of 14, Shen Zhenyi, with his Six Forms of the Ancient Sword, surpassed the swordsman Zuo Tianxing who was ranked among the top ten masters in the world, and won the title of “The First Swordsman of the Abyss.”

He now lies crippled. A fraction of the state he was in before. Or so they thought.

- Description from Novelupdates

After her mother’s passing, Tabitha Collins’s father marries a new wife and sends Tabitha Collins to live with a family she barely knows. There, she meets Alexander Foster, the family’s high-flying Eldest Young Master, who wants nothing to do with her. Apart from him, however, the other members of the family loves her and dotes on her. Soon, things began to change. Alexander Foster becomes intrigued by the mysterious and seemingly untamable Tabitha Collins. Who is she exactly? Initially, the girl seems to lack confidence and needs protecting, but as he finds out more about her, he realizes, he's the one with the catching up to do!

In the 5th year of Konoha’s founding.The battle between Hashirama Senju and Madara Uchiha at the Valley of the End had come to a close.In order to treat his elder brother’s injuries, Tobirama Senju resurrected a medical ninja from ancient times, hoping that this individual could prevent the injuries from shortening his brother’s lifespan.This medical ninja’s name was Emiya Shigen.