Beware the Villainess! is a fantasy romance manhwa written by Blue Canna and illustrated by Blue Canna, also known by its Korean title Geu Angnyeoreul Josimhaseyo!. The story follows Melissa Foddebrat, a sharp-tongued noblewoman who is reincarnated into the world of a romance novel as the story’s destined villainess. Instead of following the original plot and suffering because of useless male leads and toxic romance tropes, Melissa decides to change her fate and live freely, rejecting her engagement with the arrogant crown prince and challenging the story’s original characters. Using her intelligence, confidence, and strong personality, Melissa begins to rewrite the story, protect the heroine, and pursue her own happiness in a world full of nobles, magic, romance, and political intrigue. Beware the Villainess manhwa is a popular villainess isekai story that combines romance, comedy, fantasy, strong female lead, reincarnation, and parody of otome isekai tropes, making it one of the most popular villainess manhwa for readers who enjoy romance fantasy stories with powerful female protagonists and story plot twists.

Alternative Titles: Geu Angnyeoreul Josimhaseyo!, Beware of the Villainess!, Cuidado con la villana!, Attenti alla malvagia!, Gare à la vilaine!, Берегись этой злодейки!, その悪女に気をつけてください, 그 악녀를 조심하세요