One Piece:Becoming the King of the World from the Rocks Era

At the age of thirteen, Li Yuan awakens from his fetal slumber, endowed with powerful Observation Haki, physical gifts, and swordsmanship talent. Coupled with the Sword God Body Tempering Technique he brought from his previous life, he has the foundation to become the strongest in the world. By seventeen, he sets sail, joining the Rocks Pirates and participating in the God Valley battle, where he plunders treasures from the Celestial Dragons. He then forms his own pirate crew, vying for the seat of one of the Four Emperors in the New World, ultimately striving to become the world's greatest swordsman. With the most powerful attacks and defenses combined within him, he seeks to achieve the pinnacle of strength. Before the Marineford War, he aids Whitebeard in regaining his peak power. While Whitebeard attracts the attention of the entire world, Li Yuan leads his crew to assault the Holy Land of Mariejois, home to the Celestial Dragons...