One Piece: I Grow Stronger by Building Bonds

He transmigrates into the world of One Piece and obtains the Strongest Bonds System.

By forming bonds with characters from the story, he can gain not only their greatest talents, but also extra rewards from the System!

He forms a Swordsmanship Heir bond with Koshiro, a Childhood Friends bond with Kuina, and a Brother-and-Friend bond with Zoro.

The bonds with these three swordsmanship prodigies combine into an SSS-rank swordsmanship talent, granting a 5,000% bonus to swordsmanship training!

Add Thunder Breathing, boundless martial arts, Haki, One-Sword Asura...

And so, an invincible all-around powerhouse is born in the world of pirates!

The Four Emperors, the Marines, the Revolutionary Army... Facing these enemies, Aike raises his sword and declares his creed:

"I don't know what it means for a monster to be immortal. I only know that across the nine mountains and eight seas, nothing is beyond the reach of my blade. At arm's length, I am an army unto myself."

Outnumbered? Draw your sword and kill them all!

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.