By 2061 CE, humanity's reckless pollution of space has severely hampered the advancement of space travel. In response, an international federation has designated the sun as a natural incinerator, establishing a federal treaty aimed at first processing hazardous waste on Jupiter and forming the space environment defense force, Cosmo Ecology. However, polluters evading surveillance networks continue to illegally dump radioactive waste directly into the sun. As a result, heightened solar flare activity is on the verge of turning Earth into a desert.