The Rocks Era: Building the Beasts Pirates with Kaido

He transmigrates into the pirate world during the Rocks era and becomes Kaido's big brother.

From the start, he activates a System and obtains the Mythical Zoan Phoenix Devil Fruit, along with advanced mastery of all three types of Haki.

When the phoenix takes flight, flames stretch to the horizon and the world becomes a sea of fire.

Even in these turbulent times, Roy is powerful enough to do whatever he wants.

He decides to form the strongest Beast Pirates with Kaido.

Among the crew are Bullet, Marco, the Empress Boa Hancock, Nico Robin, the All-Stars, the Flying Six...

After Rocks falls at God Valley, Roy's forces grow stronger than ever, and the World Government names him its greatest enemy.

When that towering figure carrying a spiked club slowly ascends Mary Geoise, even the exalted Imu has to kneel and beg for mercy!

"Now... I am the ruler!"

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