In a metropolis plagued by a deadly infestation of parasites, these insidious creatures have taken root within their human hosts, enhancing their strength and inflaming their carnal desires. Dr. Suzune, a dedicated expert in parasitology, wages a tireless battle against these vile organisms, determined to eradicate them from society. Yet lurking in the shadows is a malevolent demon organization pulling the strings behind the parasitic outbreak. As Dr. Suzune delves deeper into the mystery, she uncovers a chilling revelation - her long-lost father, missing since her childhood, may have ties to this nefarious group. The stage is set for a harrowing confrontation as violence and chaos loom on the horizon, testing her resolve in a fight for survival against the forces of darkness.