Somewhere in the New World, on an uninhabited island.
Known within the Marines as "Demon Island," this island was one of the sites of the Marine Elite Training Camp.
Boom! Boom! Boom!
Deafening explosions rang out one after another. Countless nimble figures darted frantically through cannon fire and hails of bullets, undergoing brutal training that pushed beyond the limits of the human body.
At the island's highest point, a burly, purple-haired man with a face full of resolve and severity coldly watched everything below. An enormous mechanical arm, the "Crusher," had replaced his right arm.
He was the Former Marine Admiral, "Black Arm" Zephyr.
At that moment, he was in a very bad mood.
He had just finished reading the newspaper that had shocked the world, and had also received a vaguely worded secret transmission from Sengoku.
"Tyrannosaurus" Yas.
A young monster who had turned the seas upside down at just sixteen years old.
Deep down, Zephyr admired Yas's terrifying battle record and his iron-fisted ruthlessness in slaughtering pirates. This was precisely the "absolute justice" he had always believed in.
But Yas's disregard for military discipline, his pocketing of spoils, and even his open challenge to the Pirate King filled him with profound unease.
This was nothing like a Marine. He was more like a... tyrant who was even more lawless than a pirate and acted solely on his personal whims.
As countless thoughts ran through Zephyr's mind, an adjutant rushed over in a panic.
"Instructor Zephyr! Something's wrong! Out at sea... an unidentified fleet has appeared out at sea! It's heading straight for us at high speed!"
"What?"
Zephyr frowned and raised his binoculars to look out to sea.
At a single glance, his pupils abruptly contracted.
On the distant horizon, a massive fleet of dozens of menacing black