Yet another incident occurs in Gensokyo, where humans and youkai alike have begun to mysteriously disappear. The player can select one of four characters, namely Reimu, Yukari, Byakuren or Meiling, and embark on a journey to resolve the incident.

Yet another incident occurs in Gensokyo, where humans and youkai alike have begun to mysteriously disappear. The player can select one of four characters, namely Reimu, Yukari, Byakuren or Meiling, and embark on a journey to resolve the incident.