Time Reversal: Helping Gear Five Luffy Reclaim the Top

This is a world where everyone can turn back time.

Beyond the encircled city lurk terrifying beings that threaten humanity.

If you can enter a powerful world's plane and successfully turn back time for one of its characters, making up for their regrets,

you can obtain that plane's abilities.

Lin Xingyu activates the System and chooses the world of One Piece from the start.

He helps Luffy turn back time and changes the course of his life.

He returns to Marineford and saves Ace.

At the same time, powerful figures like Roger and Shanks are also summoned by Lin Xingyu.

They reign supreme at Marineford.

A Divine Departure slays an admiral, Ace and Sabo unleash their twin Flame Emperors, and Law destroys Doflamingo.

He summons Roger and Whitebeard and makes his way to Onigashima.

Time reversal successful. He returns to his original world and obtains a Devil Fruit ability.

The second world: Demon Slayer. He helps Tanjiro travel back to the Mugen Train and save his big brother.

The third world: ...

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