Malfi is an Imperial Hive World in the Malfian System of the Calixis Sector in the Segmentum Obscurus, 8 standard days' travel through the Warp from the sector capital world of Scintilla. Malfi is the main population and manufacturing focus of the rimward territories of the Calixis Sector and is a semitropical, gloomy world of overbuilt hive cities and habitation ledges. Its population of 23 billion people approaches that of Scintilla and it subsists on its engineering and metalwork industries. The population of Malfi holds a grudge: they believe that Malfi should be the Calixis Sector's capital world and its leaders and common people venomously protest the supremacy of Scintilla in the sector.