Why did Heaven Emperor send Xuan Nv to help the Yellow Emperor for nine days? What clothes does Xuan Nv have for nine days?

Xuan Nv's dress in Nine Days depends on Xuan Nv's identity in Nine Days. If she appears as a fairy, then she dresses like the ancient seven fairies. If she appears as a queen. Then her costumes such as Bi Xia Yuan Jun, or Huashan Mom and Wei Zi Mom appeared.