[Original Web Manga](https://www.sunday-webry.com/series/607)

Celestine and Fiona are the beautiful twin daughters of the Howard family, a high-ranking noble family in the Kingdom of Saran. When they were young, they were victims of a fire, leaving Celestine with a large scar on her face and Fiona with a weak constitution and unable to speak. Meanwhile, Fiona and the prince are having an engagement party, and Celestine shows up wearing a mask...!?

Nika Satanic Barfesta is a wicked woman. With her unparalleled beauty and the supernatural ability of "charm" that allows her to manipulate anyone who falls in love with her, she has turned people all over the world into her servants. Nika's next target is Nathaniel Noah, the Demon King of the Demon World and her former nemesis. However, Nathaniel is extremely socially awkward and faints at the slightest excitement. "Demon King... look at me." Nika tries to use every seductive trick she can find to captivate Nathaniel... A love game of doom begins! ◆Author's comment: The wicked Nika will charm you in various ways, so please join Nathaniel in being toyed with by her relentless onslaught!