Demonion 2

Based on the adult game by Astronauts: Sirius, this light novel is set in the once-barren Nilt region, where nomadic peoples eventually established four great nations: the elven kingdom of Lusario, the eastern empire of Shuka, the ice empire of Kilos, and the dark demon kingdom of Hados. However, a human-instigated revolt led to the catastrophic collapse of Hados. A century later, the surviving Diabolica are widely despised as harbingers of destruction and chaos, enduring relentless discrimination and persecution across the land. Caym, a prince of the Diabolica, managed to survive the fall of his homeland by living in quiet exile in a remote corner of the world. His isolated existence is shattered when a young girl named Risbell seeks him out with a desperate plea. Having lost her parents to human hands, she begs Caym to resurrect the fallen kingdom of Hados—both to avenge her family and to save their people from ongoing oppression. Stirred by her resolve, the exiled prince declares his grand ambition: he will conquer the three remaining nations and force their respective queens into servitude, reclaiming the glory his people were denied.