Upon seeing the strange masks on these people's faces, as well as the colorful garments and animal skin robes they were draped in, Yang Xiao's first reaction was the same—this seemed like a Nuo opera.
Nuoxi is known as the "ancestry of White Play," originating from the Fangxiangshi's grand Exorcism Ceremony during the Shang and Zhou Period, commonly known amongst the people as "Ghost Play," "Tan Tang Opera," "Duan Gongxi," "Earth Play," "Ghost Play," "Transforming People Play," and so on. It is the oldest kind of ritual and canon for worshipping deities, exorcising ghosts, driving out plagues, avoiding epidemics, and conquering demons and Evil Spirits.
In ancient times, there were three major sacrifices: the La Sacrifice, the Yu Ceremony, and the Nuo Sacrifice, with the Nuo Sacrifice being the most influential and grandest of the three.