The planet is going through a terrible glacial era, and the extinction of its only sun has rendered all life on the surface of Phaenon impossible. In order to survive the eternal night and permanently freezing temperatures, the population has taken shelter in five cities, each encased in a crystal dome. At the time of your arrival in this universe, a gigantic central computer known as Ix presides over the city of Omikron. In its virtually infinite memory are concentrated all of the data from the entire galaxy, collected by its numerous sensors. Using this information, Ix is better able to manage the interests of the human race. But Astaroth, prince of the demons, has bigger plans. He secretly seizes the Ix computer and swears his revenge. He vows to conquer not only this planet, but also spread his reign over the entire universe, to avenge himself of those who chased him away.