What is the reason why the beaded beads of Xingyue Bodhi turn black?

After playing, the disc will turn from white to yellow, then to red, and finally to dark red or dark yellow, and then it will be opened.

When you say black, it should be that the quality of the stars and the moon itself is not good, which is a phenomenon of yin skin. If you haven't bought it for long, go to the seller.

If you take it cheaply, don't keep the change. You get what you pay.