Teaching Luffy the Eight Inner Gates, the Five Emperors Join the War at Marineford

A teacher transmigrated to the world of One Piece and awakened a tailor-made God-Tier Teacher System.

Luffy: "Teacher Ye, I opened the Eighth Gate, but instead I awakened my *ka form!"

Zoro: "You said I should defeat you first, but why do I feel like you're even stronger than Hawkeye, teacher?!"

Sanji: "Eating my cooking makes you stronger. I swear I didn't add any drugs!"

Usopp: "Behold my thousand-shot Quincy arrow barrage!"

Nami: "Arlong, take this super battery cannon!!!"

At the Summit War, the whole crew joined the fight!

"The Fifth Emperor of the Sea, the *Hat Pirates, have arrived!!!"

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