According to legend, there is a Meimen in Canghai in the East and Canghai in the West. The Meimen in the Canghai in the West spits out the tides of the world, and the Meimen in the Canghai in the East swallows the water of the world, so there are ebbs and flows of the world.
Most people think that the Meimen is just a legend. Even after the ancient Kyushu continent was swallowed up by the vast ocean for tens of thousands of years - it is no wonder that the ancient Kyushu continent is now just a legend. Nowadays, there are only large and small islands on this vast ocean, and all the magnificent continents have been attributed to legends.