While attending the funeral of her special effects artist grandfather, Akari and her classmate Takuya, a tokusatsu fanatic, come across a film prop that sucks them into the world of fearsome giant monsters. To find their way home, they must unlock the secrets of this fantasy world.

Higanjima is an eerie island occupied by vampires, from where none has ever come back alive. When teenager Akira hears that his missing brother has been seen in the island, he decides to investigate with several friends.