One Piece: I'm Destined to Be the Son-in-Law King! - Chapter 58: Instructor, You’re My Idol!

Ronan was just another overworked office drone until a sudden death transported him to a vast, unfamiliar fantasy world—alone, invincible, and armed with absurdly powerful abilities from a game he once played. But reality isn't as simple as a game, and after days of wandering the unending Nim Forest without finding civilization, his optimism begins to fade.Just as isolation threatens to wear him down, he encounters Frieren, a quiet elf girl hiding in the bushes. Their meeting marks the first step on a path neither of them fully understands, in a world that seems empty, yet full of mystery.

A boy from 21st century Earth, met an accident and later was reborn in Naruto’s Ninja World.
He is born in Uchiha Family and becomes the useless brother of Itachi Uchiha and Sasuke Uchiha…. Let’s see how he changed the Naruto world.

- Description from Novelupdates

He lost the moment he thought he had finally won.An orphan. A child of unknown origins. And now...a captive at the hands of someone whose intentions remain unknown.Follow the journey of Adrian as he breaks through the slavery, journeys across dimensions and unravels secrets, buried deep from the eyes of the mortals.He must not only face the challenges that fate throws in his path but also his past....the past he had long tried to forget about.It's now or never!“The locked gates of the past await me. For they shall be the lands waiting for me to be conquered or they would be my nemesis.”

In the King’s game, the [King]’s order is absolute and has the power to create rules. As the owner of a special physique, Gu Huai was selected by the system to participate in the game.