One Piece – Thundergod Marine - Chapter 96 Under Duress Part 1

[You have been abandoned by the human race and become a Fallen.][The Fallen System has been awakened.]'Ding!'[Quest Complete! Reward: Fallen Narakai Bloodline (3° Tier)]Sentenced to public execution at sixteen, falsely accused of being a monster and a genocidal maniac, Cairen Veyrith saw his family, his race, and the entire world turn their backs on him.As the executioner's axe descended upon his neck, Cairen fell… but something refused to let him go.Transported by the System to an unknown world, now bearing countless bloodlines. The legacy and fury of all the races that once fell.This time, will he find a place where he belongs…? Or will he be the one to abandon the world?

Jin, a guy with no direction in life, through an unfortunate event gets his hands on a Hitman System. What transpired then was a struggle to escape the eyes of the cops while trying to complete the system’s missions. However, through a series of coincidences, he soon finds out that his parents’ death was not an accident. Read how he uncovers the veil that has obscured the truth from his eyes since childhood and finds out the darkness that hides under this veil. ‍

Bai Yu traveled to the world of One Piece and activated the strongest swordsman system at the beginning.

No need to practice, swinging a knife will become stronger!

Thus, Bai Yu started his daily routine of wielding a knife.

Swing the knife 1000 times, and get the limit of physical strength – six styles.

Swing the knife 2,000 times to obtain the powerful Qinglong Sword Intent.

Swing the knife 3000 times, get three-color domineering.

General Huang Yuan: Bai Yu is the strongest rookie I have ever seen.

General Aokiji: My freezing ability was directly chopped into pieces by Bai Yu!

General Red Dog: Dangerous! My marshal position is about to change!

Hawkeye: Bai Yu is the number one swordsman in the world!

Since then, the name of Bai Yu has resounded throughout the world of pirates.

- Description from novelbuddy

He died on the wedding of the girl he had a crush on, after a long and successful career. After convincing Yama to send him back to the world, he decides to fix the areas in which his life went wrong. Realizing the lack of love and romance in his past life, he sets out to conquer the hearts of various women.