The Century/San Sisco parasite System

The Century/San Sisco parasite system is a solar system composing of two stars, a smaller one called Strife orbiting a larger one called Fury. The system also has two habitable planets, the closest to the two stars being San Sisco and the second one being Century, the capital of the GDA and the first to bear space farring human civilization. As well, Century's moon, Ginovia shares it's atmosphere with the planet and sustains life.