Lord of the Grotto-Heavens

Beyond the mountains, there are more mountains; beyond the heavens, more heavens! Across the vast cosmos, there are countless pocket realms. From afar, some look like sheets of paper, rivers, sunsets, rosy clouds, or fishing boats. Others resemble fishermen, cormorants, great fish, or gulls. Each shines with its own light, lending the starry sea a dreamlike beauty. Because the laws that shape each pocket realm are different, the races that arise within them are as numerous as the stars, and even the cycles of life and death hold their own mysteries. It is said that whenever a living being becomes the master of a pocket realm, they will do whatever it takes to break through into a neighboring realm and capture its inhabitants, using them to nourish their own domain.