Naruto System in One Piece - Chapter 20

You feel your strength is insufficient, Strength +1.You have practiced the Golden Bell Shield, Martial Arts Level +1.You have picked up a volume of Taoist scripture, Understanding +1.Your opponent is extraordinarily strong. The Golden Bell Shield has reached Great Perfection. You combined the Golden Bell Shield, Iron Cloth Shirt, and Thirteen Cross Training, all +1, and mastered the Vajra Indestructible Divine Skill. Your opponent's knife cannot harm you and is utterly devastated. ...

Here martial arts are no longer intangible legends. They have been passed on from generation to generation and from century to century. After the confrontation with science and technology, they have completely integrated into modern society and all kinds of martial arts competitions are taking place across the country as superiority among scholars are hard to reach a consensus but not as difficult among martial artists!

Lou Cheng has found an unknown cultivation item that fuse with him and help him for the first part of martial arts, the meditation.

Towards his original dream and the glory in his heart, he will advances step by step, becoming the warrior of this modern city and the hero of the era!

- Description from Novelupdates

The Su family has twin daughters.

They were like the sun and the moon; one sister was bright and had a carefree disposition while the other one was demure and reserved.

But it never occurred to anyone that when the twins grew up, the introverted sister would step into the entertainment circle and became a well-known flower! While the other one packed up her school bag, and aiming to become a doctor of Geology, sailed all the way across the ocean!

One day, while the other sister’s intoxicated face was exploring the wild, a manager with a group of bodyguards tied her up and brought her to a variety show!

“What bedroom scene are you trying to make me do?! Let this old woman go!!!”

“Su Jishi, your sister left a retirement letter and disappeared! All her endorsements, variety shows, and movie contracts add up to more than three billion dollars in liquidated damages! If she still won’t show up, then you have to take her place for the meantime!

“What?!”

“By the way, she’s currently dating the vice president of XX Group and you have an appointment with him tomorrow night.”

Manager: “You are three centimeters taller than your sister, two degrees darker than her skin…your hair is fifty centimeters shorter, and a mole is missing from the corner of your eye. The most important thing is that you are ten pounds heavier than her! Starting today, you have to strictly follow a diet to lose weight! Are you allergic to anything or abstain from any food?

Woman: “I’m not a vegetarian.”

Manager: “…”

The president held the woman’s face in his hands and affectionately said, “Dear, this mole on the corner of your eye was made to be kissed by me.”

The woman raised her hand to wipe off the mole: “Sorry, this mole was only painted!”

- Description from Novelupdates

He became Arthur. He lived his life as Arthur and claimed Excalibur.Now, he has returned with a purpose.Beneath the surface of the world lies a twisted world known as the veil—an dimension where monsters are born from corrupted human emotions and desire. The deeper you go, the more terrifying they become.Each Layer is sealed. Each hides a god-like being, waiting to rise to the surface.Now, Sylas bears the responsibility of keeping the gate between both worlds from breaking.[Keys are passed down through generations.No one knows where they came from, but those keys can open doors to another world — a world filled with deadly trials. If you complete the trial, you return with blessings from gods, mythical beasts, and ancient warriors. The amount of blessings you earn depends on how well you perform.But if you fail, the door shatters… and you are gone forever.If you survive, you are given a permanent rank — a rank that decides your place in society for the rest of your life.]