One Piece: From the Start, I Sign In for the Dark-Dark Fruit

After transmigrating into the world of One Piece, Ron awakens a god-tier sign-in System. His beginner's gift pack contains the Dark-Dark Fruit, perfected for total control: no doubled pain, just the terrifying power to devour everything!

He starts sweeping through the East Blue: takes down Kuro in seconds, crushes Smoker, wipes out Arlong, recruits Nami, and sees his bounty soar to 80 million!

Once he enters the Grand Line, his sign-in rewards skyrocket:

Alabasta: While Luffy battles Crocodile, he profits from their fight and seizes the Sand-Sand Fruit! The first double Devil Fruit User is born, and the world is stunned!

Sky Island: He defeats Enel and plunders the Rumble-Rumble Fruit! With the power of three fruits, his bounty breaks 100 million!

The Paramount War: Blackbeard is his natural counter. He takes the Tremor-Tremor Fruit! With four fruits, he becomes one of the new Four Emperors!

Wano Country: Kaido's Azure Dragon Form? Hand it over! With five Devil Fruit powers, the Strongest Creature has a new owner!

When the ten supreme fruits, Dark, Tremor, Magma, Ice, Glint, Rumble, Sand, Fish, Op-Op, and Door, all belong to one person, Marine Headquarters, the Five Elders, and Imu all tremble beneath his feet!

Note: The protagonist won't be bullied or left helpless. He acts decisively, and the thrills are nonstop!

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