Seong-ah Doh

Doh Seong-ah is a newly created, naive, and clumsy devil born with the mission to kill and replace his human doppelgänger, Lee Woo-yeol. However, due to a clerical error by a senior devil during his creation process, Seong-ah was not modeled after Woo-yeol's actual appearance. Instead, he mistakenly took the form of Woo-yeol's favorite celebrity idol, boasting a strikingly beautiful and delicate appearance. Despite his supernatural identity, Seong-ah is remarkably inexperienced, easily frightened, and constantly outwitted by his human target. As he struggles to execute his original mission, he finds himself trapped in a highly dangerous and intense cat-and-mouse game, where the power dynamic completely flips against him.