Dejiko decided to take a vacation and visit her home, Planet Di Gi Charat, together with Puchiko, Gema, and (accidentally) Rabi~en~Rose. However, Piyoko and her aids would not let go this chance to capture her.
In 2061 CE, humanity's indiscriminate pollution of space has substantially hindered the development of space travel. In response, an international federation has designated the sun as a natural incinerator, federally establishing a treaty with the goal of first processing hazardous waste on Jupiter and forming the space environment defense force Cosmo Ecology. However, polluters evading surveillance networks continue to illegally dispose of radioactive waste directly into the sun. As a result, increased solar flare activity is on the verge of turning the Earth into a desert.