A Zhou, a young man from Shiyu Village, never thought that the broken shell that his grandfather gave him before his death would be the key to the deep sea world.
This sea area that has nurtured fishermen for generations is on the verge of death - industrial waste has polluted the fishing grounds, and strange red tides have engulfed fishing boats one after another. Even the most experienced captains are afraid to sail offshore anymore. In order to raise money for medicine for his seriously ill sister, Azhou ventured into the legendary shipwreck site where the "sea spirit relics" were hidden, but in a desperate situation he blew the tidecaller snail full of ancient patterns.
The sound of the conch does not dissipate in the waves, but awakens the deep-sea giants who have been sleeping for thousands of years. The giant turtle covered with coral reefs carried him away from the whirlpool, and the luminous monkfish illuminated the sunken treasure for him. Even the legendary mosasaurus, which overturned a ten-thousand-ton ship, lowered its head in the sound of spirals. Azhou finally knew that what his grandfather left behind was not only the artifacts, but also the inheritance of the "Tide Watcher" - the mission of using tide-calling snails to communicate with giant beasts and protect the balance of the ocean.
