Naruto System in One Piece - Chapter 22

A Di [legitimate-born] daughter of a noble house turns into an abandoned daughter. No father to dote on her, no mother to love her, no problem. She uses one silver needle to save a dying man. What’s so unusual about a medical injection? She roams all over the world with a scalpel in her hand. Cutting throats, cutting open abdomens, cutting open skulls to mend bones. With amazing medical skills and ethics, she gathers a flock of officials, obtains the will of heavens, gains public favor, and receives Taizi’s [Crown Prince] doting. In the midst of a powerful momentum, her cheap father comes to reunite. She coldly refuses to go home or acknowledge ancestors.

Become famous early, make money early, and enjoy the joy of life in America with both fame and fortune.The Great America, Hollywood, business warfare, entertainment industry, celebrities and movies…“Do you know what my favorite movie is?”“The Wolf of Wall Street?”“Yes, these sentences are really amazing!!”【The world of investing can be a jungle. Bulls. Bears. Danger at every turn】【I'm talking about normal people, working-class, everyday people. Everyone wants to get rich. Am I crazy? There's no such fuckin' thing as an Amish Buddhist】【Are you behind on your credit card bills? Good! Pick up the phone and start dialing!Is your landlord ready to evict you? Good! Pick up the phone and start dialing!Does your girlfriend think you're a fucking worthless loser? Good! Pick up the phone and start dialing!I want you to deal with your problems by becoming rich! All you have to do today is pick up that phone and speak the words that I have taught you. And I will make you richer than the most powerful CEO in the United States of fucking America!!!】

Having opened his eyes once more, Chu Zheng found the world turned upside down. He had transformed from a Cultural Relic Restorer into a household slave.At the same time, a new feature had emerged within his body: a Repair Panel that refreshed daily, enabling his skills to continuously advance.【Incomplete Mantra (repairable)】→【Great Circulatory Breathing Guideline】【Ruined Temple Remnant (repairable)】→【Ancestral Dao Golden Body】【Damaged Spirit Root (repairable)】→【Superior Quality Immortal Bone】…………In an era of cultivating truth, heroes compete fiercely, and prodigies rise together.From ancient times, sages and wise men were buried by the sands of time; a lifetime of glory or disgrace turned to naught in a blink, and only a few names are recorded in the annals of history.Having lived this life a second time, Chu Zheng did not seek the arts of immortality, but merely wished to have his name remembered by future generations.

When an S-class elite assassin-raised captain of a special ops suicide squad comes home from a high-stakes Africa mission, he finds himself offered something that could potentially set him up for life- a curious assignment that he could use to finally exit his days of war and slaughter.

Then placed into a high-school setting, Lin Yi is tasked by the chairman of a top-tier multi-billion company with bodyguard duty for non-other than his own daughter, a certain little Miss of said high-school.

His enemies, once ranging from drug lords, mafia bosses, political figures, and national leaders, are soon replaced with spoiled kids who happen to have rich papas and mamas, and Lin Yi finds his intense expertise and high-threat skillset misused, and very underwhelmed…

But he does get a harem cast as diverse as his old enemies, so Lin Yi decides that, for the sake of messing around with girls as an invincible entity in a down-leveled environment, leaving his bloody and death-filled war days behind is something he’d definitely want to strive for.

- Description from Novelupdates