When devils lurk in the darkness, growing stronger as they feed on our fears, devil hunters are sent to exterminate these vile beings. Discovering the existence of a devil that gives birth to monstrous parasites hellbent on taking over human minds, a very powerful devil hunter (Octokuro), alongside her apprentice (Clemence Audiard), go on the hunt. They track the devil's location to an abandoned Manor House, splitting apart and scouring the building. The devil hunter comes face to face with the parasite devil (Amirah Adara) itself. Despite its threatening demeanor, the devil hunter shows no fear, especially now that her partner has arrived to back her up. However, the hunter's confidence shatters when the apprentice restrains her master, revealing she has been corrupted by the parasites. With the hunter left defenceless, the devil before her spawns a slimy parasite, penetrating the hunter's mouth and letting her parasite turn the infamous hunter into a depraved servant.
