Eighteen-year-old youth Ying Shaolong saves someone and falls into the sea, accidentally obtaining the millennium true dragon "Zulong Jue" inheritance, mastering supernatural abilities such as water control, perspective, and refining aquatic life. Relying on salvaging rare seafood to make his first pot of gold, buying a seafood shop and renaming it Longxian Pavilion, he successively defeats seafood market bully Wang Laosan and corrupt merchant General Manager Zhao's malicious suppression, dominating Jianghai with dragon power and medical skills, and ushering in an invincible life of a bumper harvest in wealth and strength.