The names of weapons in ancient drama of gods should be related to ice or water, and they should be pleasant to listen to.

the water in the sky is pure yin, the essence of many waters, and a drop can be a wishful hookah for rivers and seas

Luo: it is a treasure net, with a thin layer when not in use and a large square inch, which can take hundreds of kilometers to defend against fire, water, wind, thunder and lightning for nine days and ten places. It is made of thousands of years of refined iron under the sea and ice from the Arctic, and it is in shape without a little pure yang.