A Mentor at Sea: The Empress Strikes Me in the Dead of Night

He transmigrates to the world of One Piece and becomes Feiyu, Luffy's older brother, awakening the Life Mentor System. As long as he points others toward a path in life, sets training plans for them, and they work hard to complete them and grow stronger, he can earn treasure chests of varying grades!

Looking at three-year-old Luffy's clear yet foolish eyes, Feiyu becomes his life mentor and keeps setting training plans for him.

As he guides Empress Boa Hancock, her Love-Love Fruit undergoes a super evolution, and she keeps wanting to land a critical hit on Feiyu late at night.

He guides Nami, and she transforms into the God of Thunder. That tingly, electrifying feeling is pure bliss.

He guides Robin, and she transforms into a hand. You won't understand until you've experienced it.

He guides Momousagi Gion. Everyone who's tried it says it's great!

Empress: "My lord Feiyu, I want to land a critical hit on you tonight, too!"

Luffy: "Onii-chan was right. I actually awakened the Nika form!"

Ace: "Big Brother Feiyu is amazing. My Flame-Flame Fruit actually turned into the Fire God form."

Sengoku: "Garp, do something about your grandson! He's about to make the whole Navy rebel!"

The Five Elders: "Feiyu is our true, terrifying enemy!"

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