Jiang Yi was swindled out of a million-yuan profit share by his greedy father Jiang Fugui and brother, then pushed into the sea—only to awaken his "Ocean Perception System"! Teaming up with Xia Lin, he fights back with high-stakes fishing, takes on local tyrant Wang Daqiang’s monopoly and black-market bans, gathers ironclad evidence to topple the criminal syndicate, ultimately conquers the seas, protects the azure waters—and seals a lifelong promise with Xia Lin.