A modern university student named K unexpectedly awakens within her favorite historical romance novel, now embodied as Cha Seon Chaek, a minor noble character dreaming of a peaceful life. Against her will, Cha Seon Chaek crosses paths with Lee Beon, the novel's captivating yet cold-blooded male lead. He is a favored royal known for his striking appearance and martial prowess, but also harbors a deeply heartbreaking past.
During their initial encounter, Cha Seon Chaek finds herself consoling Lee Beon, which unexpectedly leads to them spending an intimate night together. Determined to restore the novel's original storyline, Cha Seon Chaek actively attempts to guide Lee Beon toward Cho Eun Ae, the intended female lead. However, despite her persistent efforts, Lee Beon's affections continually return to Cha Seon Chaek, irrevocably altering the fates of everyone involved and creating a new romantic destiny.
Other names: A primeira noite com o Duque, I Took the Male Lead, Namjuui Cheotnalbameul Gajyeobeoryeotda, Taking the Male Lead's First Nigh
Genres: Comedy, Fantasy, Historical, Romance