Modern yacht enthusiast Xie Zhihe time-travels into the body of the legitimate daughter of the Xie family, corrupt officials in the Dayin Dynasty, and binds with the Omnipotent Yacht System while being exiled to Hainan with her family. Relying on an armored yacht and modern machinery to resolve multiple crises of sea pirates, corrupt officials, and natural disasters, she reaches a cooperation with Huan King Xiao Shiyan, who was implicated and exiled, subdues government soldiers, sea merchants, and exiled commoners along the way, builds a marine base after arriving in Hainan, develops fishing and salt commerce, contends against the crown prince's faction in the capital, and takes root on the island to stand on her own.