Viola, abandoned as a decoy by her party the moment they encountered the Demon King, She offers a deal to the Demon King just before being killed. The deal is to become the Demon King’s shield when the hero appears, in exchange for being spared for now. With the Demon King accepting the deal, Viola’s life in the Demon King’s castle begins. Her first order of business is a dietary revolution because the castle’s meals are inedible! Initially cooking silently for her own living environment improvement, Viola unwittingly captures the appetites of the residents. Even the Demon King starts to take an interest in Viola. At that moment, the hero visits the Demon King’s castle. True to the deal, Viola sacrifices herself to save the Demon King but…!? “Viola. — Never, disappear from my sight without permission again.” The Demon King, who had become obsessed with Viola, resurrects her. Five years later, Viola awakens. Viola can only be bewildered by the Demon King who now dotes on her as if he’s a different person. Even if she tries to escape, his doting knows no bounds.