It all started as a crusade against the demons, the humans thought they could easily beat the demons but they were wrong. So they asked for help from other races and they accepted it and now they thought they would beat the demons but they were wrong again, now every race was stuck in the last city, their last stronghold against the demons. Everyone inside turned to Archpriestess Sevillia and she was the leader, they waited for her orders to attack but the orders never came, she put up a barrier around a church to save herself, she betrayed everyone. Everyone thought the demon rule was going to be awful but they were wrong again, the demon rule brought prosperity, peace, and order. One day a demon child's ball somehow got inside the barrier, there the demon child met Sevillia, they had a deal, Sevillia was going to switch their eyes and she was going to give the demon child power. And the demon child grew up to be the demon king, his bloodline continued this deal, After many centuries, an arrogant spoiled brat became the crown prince, he had a terrible personality, he saw humans as disgusting creatures and when Sevillia arrived to make a deal, not only he rejected the deal he insulted and attack Sevillia, she was too strong.  Sevillia spared his life but he found himself in another time with stupid stats.