What is Wansheng liquid?

Are you asking what Halloween is? Western traditional festivals.

Halloween is a traditional western festival, and June 3rd1day is also called "Ghost Festival" and "Halloween" every year. Halloween is called "Halloween" and "AllHallow's" in English. Eve, short for "Halloween". This festival originated from the worship of Gail in ancient western Europe. In Europe, Halloween is traditionally regarded as the closest time to the world in the supernatural world, similar to the Mid-Autumn Festival and Orchid Festival in East Asia.