The supporting character's harem is very normal - Chapter 37 Miam!

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

Yin Li was born with a pure Yin body. He possessed the body of a male but the fate of a female, his Yin and Yan energies fully inverted. Because of this, his family’s old ancestors claimed he wouldn’t be able to live past twenty years of age.

To prolong his life, his parents fostered a furnace whose energy he could harvest to nurture his own.

As Yin Li looked at the frail and delicately charming boy in front of him, he felt his heart stir with compassion.

The Heavenly Path is carried through reincarnation, life and death are decided by fate.

He couldn’t simply ruin this pitiful child for the sake of his own selfish interests. Instead, he kept the small boy at his side, spoiling him and raising him as his trusted aide.

He truly believed they shared a master and servant’s pure and honest affection, not at all realizing that that wicked boy had been rotten from the start. The delicately charming small boy who was spoiled day and night only ever thought about two things:

1. Why hasn’t master bestowed his favour on me yet?

2. Just how can I climb into master’s bed?

- Description from Novelupdates

Having being plagued by same dream for the past six years, Chu Yanshen discovered a little boy who looked just like him out of the blue. It was only then did he, Chu Yanshen, learn that he had been deceived by the little lass six years ago…

- Description from Novelupdates

Starting over once more, he has entered this “living game” again in order to control his own fate.

This time, he will not be controlled by others.

Previously the Level 200 Sword King, he will rise to a higher peak in this life.

Methods to earn money! Dungeon conquering strategies! Legendary Quests! Equipment drop locations! Undiscovered battle techniques!

Even the secrets Beta Testers were unknowledgeable of, he knows of them all.

Massive wars, life advancement, entering Godhood, sword reaching to the peak; a legend of a man becoming a Sword God has begun.