When Kaito Sakamoto unexpectedly finds himself in the world of One Piece, he becomes Luffy's childhood friend. With a mysterious system by his side, he discovers the powers of the Tremor-Tremor Fruit amidst fierce battles and pirate adventures. Can Kaito harness his abilities and change the course of history, or will he be swept away by the chaos of the Grand Line? Join him on a thrilling journey of friendship, power, and destiny! Disclaimer: I do not own the cover image. If you’re the rightful owner and wish for its removal, please contact me, and I will promptly take it down.