On a planet just like ours, with people just like us, a disease breaks out and kills a three fourths of the population. This forces all living people from all walks of life to congregate in Itrandonea, the Common Trade nation. When it's discovered that those affected with the disease were initially people with physical defects, anybody that doesn't fit the "ideal" is shipped to the country south of the common trade. Over the years, more people are subjected to removal from the central city, and forced to live as a Defective.