Big Brother Kaido: The Strongest Dragon Emperor on the Grand Line

He transmigrates into the world of One Piece and becomes the big brother of Kaido, the future Emperor of the Sea, known as the Strongest Creature.

He awakens the Dimensional Martial Arts School System and eats the legendary Mythical Zoan Dragon-Dragon Fruit, Model: Azure Dragon.

He is the man Rocks could never win over, and the shadow Roger could never escape.

He is the one Garp wants to surpass, and the person Marine Headquarters least wants to provoke.

After the Rocks era came to an end, Wu Tian resolutely chose to retire and cultivate in seclusion, seeking the true meaning of martial arts.

Until...

After circumnavigating the world, Roger was sailing home when he unexpectedly followed Kozuki Oden to Wano.

"Kaido's always been a clever boy!"

"He's had big ambitions since he was little. As his big brother, I'm practically his father, so of course I have to support him!"

"I'm just a fighter, so I don't know much about reason. But when it comes to Wano, are you choosing to work with me, or make an enemy of me?"

Wu Tian, newly emerged from seclusion, raised his fist and spoke in a kindly tone.

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