The Demon King who governs spider lilies, residing in the Demon King's Castle on a lonely island in the Azria Ocean. She was once human, but was exiled from her village in the dead of winter due to her "cursed bloodline," and died a lonely death beside a patch of spider lilies blooming in the snow. However, her soul was salvaged by monsters, and she was reborn as the being who rules the demon race. While she is elegant and extremely kind toward the weak, children, animals, and demons, she possesses an extreme duality, emitting horrific bloodlust and cold words with a smile toward the strong or those who oppose her. In battle, she uses graceful, dance-like unarmed combat and gouges vital points with high-heat light beams fired from her palms. Furthermore, she hides the power to awaken into her "Mad Flower Form," where her hair turns red like a spider lily and her physical abilities skyrocket, and her "Frenzied Flower Form," where her hair becomes crimson and black with golden eyes, deploying a domain that carbonizes anything it touches. Incidentally, she likes red spider lilies the best. Her name as a human was Rui.