A story based off of the "Shuuen no Shiori Project", a song series by 150P and Suzumu. The stories are based off of Japanese children's games and urban legends such as one-man hide and seek, doppelgangers, mearry's phone and monkey paw. On the normal, unchanging campus, it suddenly occurred; A murder case where a body was cut open, right into two. On the other side of the unsolved case, the rumor-loving high school students became involved in a certain ritual. From the extremely popular songs on Nico Nico Douga, begins the Project.