In the thirtieth year of the Great Pirates Era, the Grand Route was in turmoil.
The former Pirate King Gol D. Roger was executed in Rogue Town. The words he left behind, "Do you want my treasure? Then go and find it at the end of the Grand Line" ignited countless people's dreams of adventure. Today, the Four Emperors rule the new world, the Shichibukai guard the routes, and the Navy Headquarters maintains superficial order—but everyone knows that a storm sweeping the entire sea is brewing.
Lin En, a young man from Donghai Windmill Town, accidentally ate the most mysterious fruit in the legend - the "Resonance Fruit". This fruit will not directly give him power, but it will allow him to establish a "resonance connection" with others and share each other's abilities, memories and wills.
He originally wanted to live a peaceful life in the East China Sea, but one day he rescued a girl who was being chased by pirates. The girl told him an astonishing secret: her family holds the clue to "Ravdru", and those who are chasing her are the most ferocious "three plagues" under Kaido, one of the four emperors.
In order to protect the girl and pursue the freest sea in her heart, Lin En decided to go to sea.
He needs partners, he needs strength, and he needs to form the strongest pirate group of this era.
Thus, a legend about bonds, growth and conquest began from the East China Sea and headed towards the end of the great sea route.