itself is far greater than they could imagine. The Medusa Virus One pivotal role in the series is that covered by the Medusa virus, a mortal disease so named after the Medusa from Greek Mythology, the Gorgon whose eyesight could turn anyone and anything into stone at a mere glance. The virus itself is extremely virulent, infecting its victims' cells and causing seizures while drying up the body, turning the infected into a solid, stone-like corpse. While perceived as a terrible malady by the world, in reality the Medusa virus is not a virus at all, being a shapeless presence brought to Earth from outer space. It landed in Siberia during a meteor shower, by chance near a young boy and his pet deer, enough to instantly infect both him and his animal. Unknowingly bringing the concentrated thing to his home, he infected his whole family and his sister Alice. She unknowingly uncovered the true nature of Medusa when her imaginary friend, a cat-boy hybrid, came to life by erupting from her back. Terrified by the death of her family and the fact that the newborn creature devoured her brother's deer, she trapped it in her house and set it on fire, thus spreading Medusa all over the world through the fire's smoke. It was then that the people affiliated with Venus Gate, a religious sect, showed themselves and approached Alice, believing her ability to turn imagination into reality to be a gift from the heavens. Experimenting on her and Medusa, during that time they employed a hacker named Zeus as their security specialist, though in doing so they doomed themselves when he, pursuing his crazy dreams, developed an artificial way to force dreams into suitable hosts and, thus, fabricate mind-created realities at will to accomplish his plan to force the world into a primal survival game to amuse himself. Characters Kasumi is the main protagonist of the story, which for the most part is told by her point of view. One of the 160 people around the world lucky (or rich) enough to be chosen as potential cure testbeds for the Medusa virus, she left the world leaving behind herself and her twin sister Shizuku, who was also a victim of the virus, though until the end encouraged Kasumi to accept such an opportunity and be cured. She was the first of these people to be awakened and the