The 地霊祭 (Chireisai) (Underground Carnival) is an annual event that takes place in certain parts of the world and the locations change every year. It was first established in 2008, a year after 東方地霊殿 ～ Subterranean Animism was released. Since then, this annual event has dealt with primary Subterranean Animism. The next one was hosted in 2012年7月8日, and the next one took place on 2013年7月12日.