Xie Ci opened his eyes and was surrounded by pirates. He was penniless and was being hunted down with a bounty on his head - was the difficulty of this time-travel dungeon broken? But he is still just a navigator with no power!
It wasn't until he ate the mysterious Devil Fruit that the secrets of the ocean were completely revealed to him. Wind, waves, ocean currents, tides, and even every reef on the seabed have become his eyes. While others risked their lives on the Grand Line, he could already calculate the path of storms and predict the nests of the Sea Kings.
How to become the strongest navigator? When the fleet of the Four Emperors trembled because of his route map, when the world government offered him a sky-high reward for a route analysis... This sea will eventually be measured by him!
