The writing of the Twelve Kingdoms is biased towards Jianghu. Referring to the four images of the starry sky, namely the blue dragon in the east, the white tiger in the west, the red bird in the south, and the black basalt in the north, they appear here as the names of the four pieces of glazed jade. The relationships between characters in the text have changed. The names in it may be a bit confusing, don't take it personally. Come and take a look if you are interested!