From the Start, I Level Mary Geoise, Shocking the World

The protagonist is decisive and ruthless. If someone deserves to die, he kills them without hesitation!

He transmigrates into the world of One Piece and, from the start, becomes a slave to the so-called Celestial Dragons. Fortunately, he activates a System.

What? You say Logia Devil Fruits are the strongest?

The truth is, what makes a Devil Fruit truly powerful isn't the fruit itself, but the person who uses its abilities.

What would it look like if the Bomb-Bomb Fruit's powers were developed to their limits?

That day,

Roya set off his Devil Fruit powers in the Holy Land of Mariejois.

That day, the Holy Land atop the Red Line was razed to the ground.

That day, the Four Seas trembled.

That day, the whole world was stunned.

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