The Red-Haired Pirate Boards the Ship and Shows Off His Haki? Not a Single Person Passed Out

Lin En transmigrates to the world of One Piece and becomes a scientist for the Whitebeard Pirates.

Then he activates a Black Tech System, unlocking the Gravity Chamber from the Dragon Ball world from the start.

Training in the gravity chamber makes the crew's strength rise rapidly.

When Red Hair comes aboard and unleashes his Conqueror's Haki to show off, he doesn't manage to knock a single person out.

Later, Lin En unlocks a medical pod, cures Whitebeard, and beats Akainu to a pulp at Marineford.

He unlocks the Hulkbuster armor, and even a small-time crew member can mercilessly thrash Whitebeard Jr.

…

"Hand over Ace, or die!"

At Marineford, Sengoku looks at the Iron Man suits filling the sky, even more powerful than the Pacifistas, and falls silent.

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