The is the largest of the many dōjin conventions hosting only '' Touhou '' content . Although the coordinator of this convention has nothing to do with Team Shanghai Alice officially , the name " Hakurei Shrine Reitaisai " was given by ZUN himself . It first started in the year 2004 as a way for Team Shanghai Alice to publicly distribute the trial version for their upcoming games to the fans well in advance of releasing them on the internet ; in addition , the 2004 Reitaisai featured a total of 114 participating circles . Since then , many '' Touhou '' derivative works are also gathered and sold there . Commencing every year in April or May , the convention has been hosted in Ōta , Tokyo in 2004 ; Naka-ku , Yokohama in 2005 ; Sunshine City , Tokyo in 2006 and 2007 ; and the Tokyo Big Sight in 2008 and after . The year 2010 saw the birth of Reitaisai SP , an additional Reitaisai to be held every autumn due to increasing popularity , but Reitaisai SP was canceled after 2011 . The 2011 Reitaisai was originally canceled due to safety concerns after the 2011 Tōhoku earthquake and tsunami , and the release of '' Ten Desires '' was also postponed . It was later rescheduled and held on May 8 , 2011 , with approximately 4,940 participating circles . In addition to events in Japan , there is another Reitaisai held in Taiwan starting in 2015
2011 Tōhoku earthquake and tsunami
2011 Tōhoku earthquake and tsunami
Touhou Project