During the Longqing period of the Ming Dynasty, on the canal, the blood and sweat of trackers stained the ropes red. Lang Libai grew up by the Cao River. He is a man of copper skin and iron bones. He has excellent water skills and can sneak for hundreds of feet without taking a breath. He made a living by pulling fibers, but he had to endure the exploitation of Eunuch Zhao, the eunuch who guarded the canal. He set up private tax cards and forced labor. The trackers worked so hard that they couldn't even get enough to eat.
One day, when the boat passed the Longshou dangerous shoal, Eunuch Zhao forced Lang Libai to explore the hidden piles on the bottom of the water with his bare hands. If he didn't comply, he would be whipped. Lang Libai endured the humiliation and went into the water, and unexpectedly found a bronze dragon head sunk in the mud at the bottom of the river. The dragon's head holds an iron coupon in his mouth, with the four words "Water Transport and Water Conservancy Plan" written on it. From then on, the secret waterways and hidden river shortcuts of the entire canal appeared in his mind, and he gained an astonishing strength.
After hearing the news, Eunuch Zhao took the dragon's head by force, forcing Langlibai to despair. He joined forces with trackers, boatmen, and wharf coolies to use the river as a stronghold, robbed grain, and killed tax supervisors. He grew from an untouchable to a "river god" that outraged the court and praised the common people. And behind the dragon's head, there are also millions of grain treasures that were sunk by the previous dynasty...
