Predicated on the seinen sciencefiction manga series by Iwahara Yuuji, serialised in Comic Beam.A mysterious virus, nicknamed Medusa, is spreading around Japan, turning its victims to rock. Considering that the impossibility of finding a direct cure, the government opts for cryopreserving a group of patients till they come up with a solution. Kasumi, one of those ones, has been sleeping for years as well as more than a bed of roses, her awakening, is a bed of thorns, and happens in the midst of chaos where creatures lie in wait.