The town of Ravenswood has been suffering from a curse for generations. Five strangers suddenly feel connected by this fatal curse and feel the need to dig in the town's mysterious and horrible history before it's to late for each one of them.

The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena. Mulder believes in the existence of aliens and the paranormal while Scully, a skeptic, is assigned to make scientific analyses of Mulder's discoveries that debunk Mulder's work and thus return him to mainstream cases.

Welcome to the fascinating world of Gensokyo, in which youkai, animals and some humans live, completely separated from our world by a magical barrier. The only gateway between the two worlds is the Hakurei shrine. Reimu Hakurei is the maiden working at said shrine. Whenever problems of supernatural causes occur, Reimu goes out with her friends to investigate, eliminate the cause and hopefully restore Gensokyo to its equilibrium.

Marisa, an ordinary magician, suspects a youkai is behind the winterly weather in the middle of spring. She goes off to investigate and soon arrives in the netherworld, facing the youkai behind the strange incident. Will her friend, the shrine maiden Reimu, arrive in time to save the day or will all be lost?

Note: A doujin anime (fan made anime) initially sold at Comiket 80. The official releases of the anime have no voices, only music and sound effects, and the lines are delivered via subtitles instead. Voiced releases are fandubs.