Li Xiao, a dedicated web novel enthusiast from modern Earth, meets an untimely end after binge-reading overnight, only to awaken on a desolate island in a bewildering new world. Equipped with a 'Cultivation Check-in System,' he dedicates his first month to mastering the arts of immortality, rapidly advancing to the late stage of Refining Essence into Qi. However, his peaceful isolation is shattered when a frantic naval chase erupts on the horizon.

A massive pirate vessel pursues a small skiff, firing cannonballs that defy the logic of a traditional cultivation realm. To Li Xiao's shock, the fugitive is none other than Nami, the famous navigator from One Piece, who immediately drags him into her conflict by claiming he is her long-lost brother. Now stranded at the intersection of high-seas piracy and mystical cultivation, Li Xiao must navigate this chaotic fusion of worlds.

With his spiritual sword ready and a burning desire to continue his quest for longevity, he finds his quiet retirement plans abruptly cancelled. As pirates swarm the shore, Li Xiao realizes that to protect his cultivation path, he may have to dominate the very seas he intended to ignore.