One morning after a storm, Afeng picked up a yellowed sea map at a dilapidated port. The ancient totems and unfamiliar routes aroused his endless reverie about the depths of the sea. At this moment, the famous Pirate King brought his fleet to the port. Their goal was the mysterious treasure marked on the chart. Afeng mustered up the courage to embark on a journey full of unknowns and dangers.
During the voyage, the fleet was attacked by bloodthirsty sea beasts. Relying on the agility he developed in the port, Afeng fought side by side with the pirates and defeated the ferocious sea monster with a harpoon, winning the recognition of the Pirate King. As the voyage progresses, they cross the reef-covered Straits of Death and solve ancient mysteries in the mist-shrouded waters. Every step is full of challenges. Afeng gradually grew up from the initial inexperience to a reliable crew member, and also formed a deep friendship with the Pirate King.
However, when they finally arrived at the treasure island, they found that it had already been occupied by evil forces. In order to protect the legendary treasure, Afeng and the Pirate King led everyone to fight fiercely with the enemy.