A global tsunami strikes, submerging the land and forcing humanity to fight for survival in an endless ocean. Lin Feng, betrayed by his girlfriend and cruelly bullied by a rich second-generation heir, unexpectedly binds himself to a god-tier fishing system that allows him to catch anything with a single fishing rod. Everyday food supplies, portable provisions, marine protective equipment, and ship upgrade components are all within reach. He can even discover treasures left on the seabed, ancient ocean-going warships, and rare, extraordinary treasures. As he resolves countless conflicts at sea, calmly confronts various malicious forces, and withstands gigantic, bizarre sea beasts lurking in the deep ocean, he steadily rises to power in the desolate vast waters, dominates the four seas, and ultimately rules the boundless ocean.