Acheron is one of the major states on the planet Charon III in the United Empire of Earth (UEE). Its environment is made up of mixed deserts and tropical regions. The Phiyi Tower, a skyscraper considered a masterpiece of Supermodernist architecture, was erected directly after a devastating 2934 earthquake to symbolize a new, more hopeful era. Acheron and its neighboring state Dellin have been engaged in a civil war since 2944.