Why Raeliana Ended Up at the Duke's Mansion is a South Korean web novel written by Milcha. It has been serialized in Kakao's digital comic and fiction platform KakaoPage since September 19, 2016. A webtoon adaptation was first serialized in KakaoPage on September 3, 2017, and is illustrated by Whale. An anime television series adaptation produced by Typhoon Graphics aired from April to June 2023.
Plot
Eunha Park dies in modern day Seoul and gets reincarnated in a novel as a supporting character named Raeliana McMillan who eventually gets killed off during the original story. To avoid her second death, she makes a deal with the male lead Duke Noah Volstaire Wynknight to pretend to be his fiancée in exchange for her silence regarding the whereabouts of the Royal Seal, information she knows from her prior knowledge of the original novel. Will Noah help Raeliana avoid her ill-fated ending, or is history doomed to repeat?