One Piece: Fist To Dominate The World

In 2025, Li Xia, an ordinary young man, accidentally traveled to the world of One Piece and awakened as a "male fighter" template in the dungeon as an 8-year-old child. He gradually advanced from Sanda to the peak of Guiyuan Sanda. Although his skills were occasionally missing, he became the "Legend of Iron Fist" in the One Piece world with his perfect fusion of physical skills and three-color domineering.
He is familiar with the plot. From the time he first met Luffy in the East China Sea Windmill Village, he set the goal of "becoming the strongest vice-captain" and accompanied Luffy to gather partners all the way: helping Zoro break through the kendo bottleneck, providing battlefield cover for Sanji's cooking, avoiding weather crises for Nami, protecting Chopper from experimental persecution, and even met Robin for the first time in Alabasta. With the promise of "protecting the truth of history," the two began to bond across the mountains and seas, and finally entered the marriage hall together.
From the Arlong Rebellion in the East China Sea, the Demon Slaying Order crisis on Judiciary Island, to the passionate resistance to the enemy in the War on the Top, and the decisive battle with Kaido in Wano Country, Li Xia has always been Luffy's most reliable right-hand man - he is the battlefield commander, dismantling the enemy's offensive with precise deployment;
When the Straw Hats arrived at Rafdru and Luffy ascended to the top of the Pirate King, Li Xia did not stop. He and Robin work together to interpret the truth of the blank 100 years, find the core of light to fight against the dark forces of the universe, move from the blue sea to the vast galaxy, witness Li Nuo grow into a new generation of guardians, and pass on the beliefs of "partner bond" and "iron fist protection" from the pirate world to every corner of the universe.