The demon lord Jan targets Antroxin, a drug designed to corrupt the hearts of the Sailor Heroines. To obtain it, he infiltrates a factory by sending in low-level demons. Sailor Ares senses the demonic presence and annihilates the underlings, but during the battle, she inhales vaporized Antroxin. Immediately afterward, Jan takes the factory workers hostage and confronts Ares, who is nearly drained of energy. The workers, overwhelmed by their lust and twisted admiration for Ares, rush to assault her. Ares succumbs to inner darkness, donning pitch-black attire and awakening as a full sadist. She torments the workers and openly expresses her sexual desire toward Jan. In the end, she completes her descent into evil.