Eternal Sword's Pirates [One Piece]

Luo Tianyu woke up and found that he actually crossed into the world of One Piece...

He broke the fate...
He rushed to the naval headquarters.
He collided with the four emperors for a promise...

Luo Tianyu: "Being reborn in this chaotic world on pirates era, I step on the stage, the sword refers to the eternal life, this world will see my brilliance."