Synopsis:

Someone or something is assaulting and devouring women at Enoshima College, and it is up to 19-year-old students Mutsumi and Megumi to stop it.  As they search for clues behind the murders, they find that the culprit is a tentacled Replinoid beast with a taste for blood.

Megumi reveals her true identity as a time traveler from the distant and bleak future on a mission to destroy the replinoids, which have all but wiped out her entire generation.  Together, they must fight these powerful beasts and save the world from extinction.