A poor young man, orphaned and recently dumped by his fiancée, expects a cheat code or golden finger to turn his life around. Instead, his fiancée changes her mind, wanting to stay together and even pay all the bills! But after a night together, he discovers something is very wrong with her. In reality, demons rampage across the land, forcing humanity into giant tech cities. The north invades the south, families and the imperial house fight, commoners suffer, and rebels wait for their chance to strike.