PERFECT CROWN

Title: 21세기 대군 부인 / 21Segi Daegun Buin

Also known as: The 21st Century Grand Prince's Wife

Genre: Fantasy, romance, comedy

Episodes: 12

Broadcast network: MBC

Broadcast period: 2026-Apr-10 to 2026-May-16

Air time: Friday & Saturday 21:40

Synopsis

Set in an alternate modern-day Korea ruled by a constitutional monarchy, a chaebol heiress, Sung Hee Joo, plans to elevate her status by entering into a contract marriage with Grand Prince Lee Ahn, who has been acting as regent for his young nephew. Little does she know that the inner politics of the palace are not for the faint of heart.

Cast

Main Cast

IU as Sung Hee Joo

Byun Woo Suk as Grand Prince Lee Ahn

Noh Sang Hyun as Min Jung Woo

Gong Seung Yun as Queen Dowager Yoon Yi Rang

People around Hee Joo

Lee Jae Won as Sung Tae Joo (Hee Joo's brother)

Chae Seo Ahn as Han Da Young (Tae Joo's wife)

Jo Seung Yun as Sung Hyun Kook (Hee Joo's father)

People around Lee Ahn

Yoo Soo Bin as Choi Hyun (Lee Ahn's aide)

Lee Shi Hoon as Kim Young Moon

Jin Se Rim as Yoo Ji Soo

Choi Ji Soo as Lee Ah Reum

Jung Ji Ahn as Kim Young Sun

People around Jung Woo

Kim Jung Woon as Jo Min Young

Han Kyu Ri as Jung Woo's secretary

Castle Beauty Secretaries

Lee Yun as Do Hye Jung (Chief secretary)

Park Ji Ye (박지예) as Park Seung Hee

Yoon Sul Ah (윤설아) as Jung Ye Rin

Jung Yi Ahn (정이안) as Im Joo Ho

Palace Court Ladies

Park Joon Myun as Choi Jin Sook

Kim Soo Jin as Jung Mi Hee

Lee Chae Kyung as Im Sun Hwa

Extended Cast

Jo Jae Yoon as Yoon Sung Won (Yi Rang's father)

Kim Eun Ho (김은호) as Lee Yoon (Yi Rang's son)

Sung Joon as Lee Hwan (Ahn's late brother) cameo

Production Credits

Production Companies: MBC, Kakao Entertainment

Producer: Kang Dae Sun

Directors: Park Joon Hwa, Bae Hee Young

Screenwriter: Yoo Ji Won

Posters