On the planet Arachne, spiders were known as highly evolved beings, but one day a massive slaughter suddenly struck the planet, causing its order to collapse. The culprit is Nia, a sadistic woman consumed by madness, who slips past heavy security and escapes into outer space. Her destination: the blue planet, Earth. Now, the battle with Shannon, who has pursued her here, begins in full force. With her evolved boar-like pet, Vivi, Nia relentlessly corners Shannon. Acquiring human fluids from Earth, Nia evolves into a stronger, more agile form. The threads she unleashes become merciless ropes and coarse cords, binding and crushing Shannon without mercy.