The First Night with the Duke — Season 1
12 episodesFirst aired 11 June 2025
University student, K, is an ordinary young woman who one day finds herself in her favorite romance novel set during historical times. She has now become the minor character Cha Sun-Chaek, the daughter of a wealthy noble family, whose dream is to have a peaceful and normal life. Cha Sun-Chaek, while possessed by K, then spends one night with Yi Beon, the novel's lead male character, who comes from a royal lineage and is favored by the King. He is cold-blooded, gifted with an attractive appearance and outstanding martial arts skills. Somehow, Yi Beon and Cha Sun-Chaek happen to meet and talk, and he is consoled by her about his heartbreaking past. They spend the night together. Soon, Cha Sun-Chaek tries to connect Yi Beon to Jo Eun-Ae, who is supposed to be the lead female character in the novel.
E1Reading a Book is Inviting Another's Life into Yours
Jun 20251h 1m
K finds herself inhabiting the body of Cha Sun Chaek, a wealthy but completely irrelevant side character. With a VVIP ticket to watch the epic romance unfold, her simple plan is to stay out of the way and enjoy the show. But that plan is spectacularly derailed after a wild night of celebration ends with her accidentally stealing the male lead’s first night.
E2The First Night in This Lifetime
Jun 20251h 1m
Cha Sun Chaek tried her best to run from Yi Beon.
E3Something Always Happens on a Moonlit Night
Jun 20251h 4m
Yi Beon encountered an unusual figure. Cha Sun Chaek tries to fix the story she broke. Jeong Su Gyeom held a gathering for the Astral Philosophy Club.
E4We Need a Backup Plan
Jun 20251h 3m
Yi Beon's persistence reached Cha Sun Chaek's family. Cha Sun Chaek encountered a foreigner. Do Hwa Sun persuaded the Queen Dowager to do something in her favor.
E5There is No Such Thing as "As It Was"
Jun 20251h 3m
The Palace officially hold the bride selection process for Yi Beon.
E6Playing the Field and a Disguise
Jun 20251h 1m
Yi Beon continues investigating the figures surrounding Cha Sun Chaek's incident. Jeong Su Gyeom gets jealous. Cha Sun Chaek made it to the final round of selection.
E7The Inflection Point
Jul 20251h 1m
Yi Beon and Cha Sun Chaek are getting closer. Jeong Su Gyeom braves himself to pursue his dream woman. A new villain entered the story.
E8The Shadow that has Returned
Jul 20251h 2m
Someone from Cha Sun Chaek's childhood past emerged. Yi Beon and Cha Sun Chaek's courtship faces another obstacle. Yi Beon's relationship with the King is being tested with the return of the exiled prince.
E9The Wounded Things
Jul 20251h 1m
Cha Sun Chaek and Yi Beon's courtship gained blessings, but the hardships remain. A highly unlikely pair starts to join forces.
E10Once Again, Because of Fate
Jul 20251h 3m
Jeong Su Gyeom obtained the truth. Yi Beon received punishment from the King. The Black Gang is getting stronger.
E11A Dream or an End?
Jul 20251h 3m
Yi Beon fights for his life, and his lover. Lee Kyu's plan fell into place. Cha Sun Chaek take matters into her own hands.
E12Into the New World
Jul 20251h 3m
Yi Beon and Cha Sun Chaek overcome their adversaries.