Yin Daiguan hat refers to the eight-character Wu Shen Zhu, and Shen means that the head of the seal is the partial official Qisha. But you are simply unable to get this kill and there are many villains. So your eight-character seal is useless if you wear an official hat, but sitting down is also a killing. Yin has the power of combined killing, and the killing can be used to create the seal. Therefore, if you cooperate with the Universiade, you can still eat national food.