Aurora Suya Rhys Kaymin is the princess of slumber, the magnate of Zs, and the potentate of sawing logs. Despite being held hostage by the demon king, Suya will stop at nothing to get her beauty rest. The Sleepy Princess in the Demon Castle is viewed with fear and awe and she wrecks havoc. From instigating a rebellion to decapitation, all acts of violence and insurrection are justified when chasing down the perfect pinions to stuff in her pillows.