A lonley girl who is considered odd with a strange way of thinking according to the people of her world. Every five hundred years a demon king appears and every four hundred and ninty five years but this time the hero's are from a world called earth. In that world they don't have magic. They say the god have them something they refer to as cheat skills but the girl hates that nothing changes even if the humans or the demons wins it all stays the same way. She uses her power as a noble to infuence thier classmates to betray every single one of them until their on their knees.