In the World of One Piece, I Level Up Alone

My name is Su Chang, and I transmigrated to the world of One Piece. Although the story hasn't started yet, this is an age of epic upheaval.

Luckily, I awakened a God-Tier Instance System. As long as I clear an instance, I can earn all kinds of rewards.

"Ding! Congratulations, Host, on clearing the instance with an SSS+ rating. You have received Rem, whose loyalty to you is one hundred percent."

From the moment he got a character as a reward for clearing an instance, Su Chang knew there was more to this than met the eye.

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.