Reitaisai is a Touhou-specific convention in Japan that takes place in Ikebukuro every year in May. It was started in the year 2004 as a way for Team Shanghai Alice to publicly distribute trial versions of upcoming games to the fans well in advance of their release on the internet.
Previous installments
- ????????????????????????: 2004???4???18??? / Place: ????????????????????????(PiO)
- ????????????????????????2: 2005???5???4???
- ????????????????????????3 (a.k.a. ????????? ???): 2006???5???21???
- ????????????????????????4: 2007???5???21???