After Chu Jiang fails at a matchmaking meeting, he accidentally enters a sealed dragon well, witnesses the corpse of a dragon, and merges with its dragon core. On the first day, he gains the ability to see inside his body, undergoes a complete transformation, and becomes incredibly strong! On the second day, he gains control over water, can see underwater, and can breathe beneath the surface! On the third day, he catches fish, scoops up shrimp, and collects crabs, earning his first fortune! On the fourth day, he discovers an old clam spitting out a pearl and unexpectedly becomes famous, making a fortune overnight! On the fifth day, he sets sail into the open sea and catches premium seafood that major hotels compete to buy. On the sixth day, he salvages antiques, becomes a billionaire, and attracts eager admirers from all directions! Eventually, he travels across the world's rivers, lakes, and seas, refines the water veins of the entire world, transforms into a true dragon, brings shrimp soldiers and crab generals to life, and builds a magnificent Dragon Palace ruling over the Four Seas.