The First Night with the Duke

8.2
20251h 1m

Production

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Reincarnated as a minor character in a novel, Cha Seon-taek unexpectedly spends a night with Prince Kyungsung, sparking an intense and unexpected romance.

Seasons

12 Episodes • Premiered 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.

Still image for The First Night with the Duke season 1 episode 1: Reading a Book is Inviting Another's Life into Yours

1. Reading a Book is Inviting Another's Life into Yours

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.

Still image for The First Night with the Duke season 1 episode 2: The First Night in This Lifetime

2. The First Night in This Lifetime

Cha Sun Chaek tried her best to run from Yi Beon.

Still image for The First Night with the Duke season 1 episode 3: Something Always Happens on a Moonlit Night

3. Something Always Happens on a Moonlit Night

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.

Still image for The First Night with the Duke season 1 episode 4: We Need a Backup Plan

4. We Need a Backup Plan

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.

Still image for The First Night with the Duke season 1 episode 5: There is No Such Thing as "As It Was"

5. There is No Such Thing as "As It Was"

The Palace officially hold the bride selection process for Yi Beon.

Still image for The First Night with the Duke season 1 episode 6: Playing the Field and a Disguise

6. Playing the Field and a Disguise

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.

Still image for The First Night with the Duke season 1 episode 7: The Inflection Point

7. The Inflection Point

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.

Still image for The First Night with the Duke season 1 episode 8: The Shadow that has Returned

8. The Shadow that has Returned

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.

Still image for The First Night with the Duke season 1 episode 9: The Wounded Things

9. The Wounded Things

Cha Sun Chaek and Yi Beon's courtship gained blessings, but the hardships remain. A highly unlikely pair starts to join forces.

Still image for The First Night with the Duke season 1 episode 10: Once Again, Because of Fate

10. Once Again, Because of Fate

Jeong Su Gyeom obtained the truth. Yi Beon received punishment from the King. The Black Gang is getting stronger.

Still image for The First Night with the Duke season 1 episode 11: A Dream or an End?

11. A Dream or an End?

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.

Still image for The First Night with the Duke season 1 episode 12: Into the New World

12. Into the New World

Yi Beon and Cha Sun Chaek overcome their adversaries.

Cast

Photo of Seohyun

Seohyun

Cha Seon-chaek / K

Photo of Ok Taec-yeon

Ok Taec-yeon

Prince Kyungsung / Lee Beon

Photo of Kwon Han-sol

Kwon Han-sol

Cho Eun-ae

Photo of Seo Bum-june

Seo Bum-june

Jeong Su-gyeom

Photo of Ji Hye-won

Ji Hye-won

Do Hwa-seon

Photo of Lee Tae-seon

Lee Tae-seon

Prince Seonghyeon

Photo of Seo Hyun-chul

Seo Hyun-chul

Cha Ho-yeol

Photo of Yun Yoo-sun

Yun Yoo-sun

Yoon Deok-jeong

Photo of Lee Sang-un

Lee Sang-un

Cha Jang-ho

Photo of Kim Shin-bi

Kim Shin-bi

Cha Du-ho

Photo of Ju Seok-tae

Ju Seok-tae

King Seoljong

Photo of Jung Hee-tae

Jung Hee-tae

Do Bae-myeong

Photo of Jung Ho-bin

Jung Ho-bin

Jeong Moon-seok

Photo of Kim Young-woong

Kim Young-woong

Cho Byeong-mu

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Reviews

Y

Yohan Yukiya Sese Cuneta 사요한

8/10

**Moral lesson: Unless one can do better, maybe skip the nasty comments**

This is a story about a reader who went after an author because the story did not go the way she wanted. She hated how it progressed, hated how it ended, and decided it was perfectly fine to throw around rude comments in public. Hiding behind that old excuse of "we're entitled to our opinion", but the message in this story was pretty clear: "If it's really that easy, then write and produce something better."

There is a massive gap between criticism that helps and comments that just attack. Some authors speak out, many just stay quiet. Some do not even bother reading feedback anymore. And there will always be those who lose heart, those who stop writing, those who even lose their jobs—because of words meant to hurt, not help.

This story was written for those types of readers. The main character? A woman who decided to let loose an ugly comment. Unfortunately for her, the author fought back. She was challenged to rewrite the story. Not just rewrite it—rewrite it well enough to save her life.

She tried. Only to end up dying by execution.

In the end, the author gave her one last option: write a proper ending using only three sentences, to save yourself from execution.

After wasting hours trying to pull off something epic, what did she come up with? A bee. A ridiculous bee. Her "genius" twist boiled down to the most random thing imaginable—a bee.

In fairness, despite almost dying and her ridiculous bee, she actually came up with a better version of the story she trashed. One that worked, nonsense twist and all.

She learnt her lesson. Sometimes it is not about liking or hating a story. Sometimes it is about understanding that writing is never as easy as it looks. Not every twist will be loved, not every ending will satisfy. And attacking someone for it helps no one.

The question is—did you learn the lesson?

You've reached the end.