The race you belong to is the only thing that matters in this world. It is no secret that hierarchies exist. Angels, Demons, Vampires, Dragons, Subnauticans, Animalia, Tsubasa, Gods, and Humans are among the eight races with their own set of kingdoms. Our protagonist is a girl named Kirumi Taevas, a feisty, sarcastic, and rebellious person in her twenties. Although Kirumi is quite young, she is determined to stop the suffering of the world, despite countless warnings from the people closest to her. No matter how she feels about it, she will have to face the fact that she has to make a choice. Will she risk everything - her status, her power, the love of those she believes in - and try to pursue the other side?