The story mainly tells that a group of small carp decided to jump over the Longmen after hearing the legend that grandma carp said that carp can turn into dragons by jumping over the Longmen. They swam over the rapids and bridge opening. When swimming across the river, a small carp's tail was entangled in aquatic plants, which worried the small carp. This was a big crab that got out of the aquatic plants. When she heard that they were going to yue longmen, she quickly made way for them and cut the aquatic plants open with big pliers.

The little carp continued to swim forward and finally found the Longmen, but the Longmen was too high. At this time, the golden little carp thought that a little carp jumped into the air, and the height of another little carp crossed the Longmen before it. Finally, the golden little carp jumped over the Longmen with the help of the waves and saw a beautiful new world.