Yasumasa Tsuchiya

A mysterious virus, nicknamed Medusa, is spreading around Japan, turning its victims into stone. Given the impossibility of finding an immediate cure, the government opts for cryopreserving a select group of patients until they come up with a solution. Kasumi, one of the chosen ones, has been asleep for years and her awakening, more than a bed of roses, is a bed of thorns, and happens in the midst of total chaos where monstrous creatures lie in wait all around.

In the year 2267, more than 160 years after the Skyport orbital station fell to Earth and wiped out all of humanity, Eden is a thriving lunar colony home to young Takeru, who tries to make the most of the brief hiatus of freedom granted to the colony's inhabitants between the end of compulsory education and the rite of becoming a full citizen.

Humanity has advanced to great heights since it obtained the information technology known as "Mana." With that nearly magical power, problems like war, food shortages, and pollution have been eliminated. This age of peace and freedom, the Empress Angelese of the Misurugi Empire is a privileged girl with no disabilities. She learns, however, that she is a "Norma," a kind of human who cannot use Mana and are outcasts of society. Having lost everything, she is sent to an isolated island. There she meets other Normas who ride in humanoid weapons called Para-mails, protecting the world from dragons invaders from another dimension.