One Piece: From the Rocks Era to King of the World - Chapter 367 - : Toolman Doflamingo

A college student, accidentally reborn into the world of Naruto, becomes a member of Uchiha who is destined to be exterminated.

In this cruel ninja world, in the face of endless wars and exclusion from the village, what will Uchiha Qing do?

PS: Later in the book, the protagonist will develop a system of immortal cultivation. Cultivating Immortals in the Ninja World, have you seen it?

- Description from novelbuddy

Avery Asteria was far from having anyone's dream job. Family circumstances had him drop out of school and flying around the expanse of space looking for treasure among the discarded trash in an old ship his father had been restoring. It was far from glamorous work, but it was all he could do to earn the money he needed.He was not the only one looking for fortune among the stars, though. One day a score that looked too good to be true led to a run in with a band of pirates. With some quick wits and a bit of luck, Avery managed to escape the worst, but he ended up missing out on collecting the valuable salvage he had his sights on.Having lost a large chunk of his gear in his flight from the pirates, Avery seemed to be truly at the end of his rope. However, a twist of fate led him to discovering an experimental vessel that had been lost to the far reaches of space.With this new ship in his possession, his prospects were looking up. It had everything and more than what any spacefarer could want. And Avery was going to use it to become the leader of the greatest band of mercenaries in the galaxy.

A master assassin transmigrates into an interstellar era.

Once a regular high school student, the protagonist gets sent to another world via truck. He reawakens to find himself contracted to a girl about the same age as him before passing, and that his body was no longer that of a human. Given a new name as the girl's contracted spirit, he spends his days at her side._ _ _ _ _ _ _ _ _ _ _This is not a novel I will be updating multiple days a week. The most likely outcome is me updating it once a week, but if any readers would like to read my other works, I would like to suggest reading the story I update most which is “Level One Isn't Weak!”.