Rho is ready to live her life quietly as an aid worker at the Cancrian refugee camp in the House of Capricorn. However, news has spread that the Marad—a deranged terrorist group that is determined to break the harmony of the galaxy—plans to attack any house at any moment. Rho then reunites with her nastiest nightmare, Ocus, who transmits an enigmatic message that leaves her no choice but to go out and fight. Rho must embark on an odyssey of high risk, through a series of different Houses, where she discovers there is much more to the Galaxy (and herself) than she could have imagined.