Reborn for a second life, Zhang Xing is no longer a good-for-nothing wasting away on alcohol and gambling. Relying on the Sea God Contract System, he contracts marine beasts such as dolphins, moray eels, octopuses, and sharks to share their super-abilities, hunt for deep-sea treasures, pay off huge debts, redeem family heirlooms, save his sister who was beaten to death by domestic violence, and tame a giant crocodile to protect the whole village. He contracts barren beaches to farm top-tier razor clams and hard clams, digs up a millennium-old Taisui to auction for millions, travels far to the Arctic to pluck an ice-and-snow lotus to achieve great merit, and even exposes and defeats a Japanese spy ship invading the waters. From a gambling scoundrel mocked by everyone to the founder of Sea God Fishery Group leading the whole village to wealth as a multi-millionaire, he also wins the heart of Shen Qingyue, president of the Shen Group, claiming the crown as the King of the Fishing Village.