MBC 드라마 ‘21세기 대군부인’의 매력: 아이유와 변우석의 사랑이 가져올 반전은?

Daniel Kim | 2026.03.26

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[Sports Today reporter Kim Tae-hyung] IU and Byeon Woo‑seok — television’s royal couple — are poised to upend 21st‑century Korea with irresistible chemistry.

MBC’s new Friday–Saturday drama '21st Century Daegunbuin,' which premieres April 10 at 9:40 PM, has released a main teaser that marks the beginning of the status‑defying romance between Seong Hee‑ju (IU) and Grand Prince Ian (Byeon Woo‑seok).

The teaser opens on Seong Hee‑ju beaming with confidence as she formally proposes to Grand Prince Ian: \"Will you marry me?\" Educated, determined and capable—and crucially a commoner with no influential in‑laws to interfere—she sells the match with bold self‑assurance. Ian, taken by her resolve, replies that he cannot refuse and accepts.

After Ian instructs her to prepare to become the grand prince’s wife, the pair share several romantic moments. They stride hand in hand under a cascade of spotlights, and at a banquet they waltz, reveling in the attention and projecting a distinctly couple‑like intimacy.

But forces opposing their union quickly emerge, adding tension. Prime Minister Min Jung‑woo (No Sang‑hyun) pleads with Grand Prince Ian to keep Seong He‑ju away from the royal family, while Queen Dowager Yoon I‑rang (Gong Seung‑yeon) pressures Min to exercise a veto against the marriage.

With a political heavyweight and a royal powerbroker aligned against them, the couple faces a fraught path. Still, when they look at each other, a new, quieter excitement flickers across their faces. Despite relentless maneuvering from their opponents, Seong He‑ju and Grand Prince Ian promise a resilient, tightly knit romantic chemistry.

Through its main teaser, '21st Century Daegunbuin' teases the inevitable clash between Seong Hee‑ju and Grand Prince Ian—who choose marriage to rewrite their fates—and their antagonists Min Jung‑woo and Yoon I‑rang. Audiences will be watching to see whether the pair can marry safely despite opposition from both the administration and the royal court.

Even before its premiere, '21st Century Daegunbuin' has generated notable buzz. Good Data Corporation ranked the series No. 1 for community response and No. 2 for social media in the third week of March 2026 FUNdex popularity rankings, placing it No. 2 overall in the TV‑OTT drama category and cementing its status as one of the most anticipated shows of early 2026.

MBC’s new Friday–Saturday drama '21st Century Daegunbuin' is set in a contemporary constitutional‑monarchy version of Korea and follows a status‑defying romance: a chaebol woman who seemingly has everything but chafes at her commoner status, and the king’s son, a tragic figure with nothing who must carve out his own destiny.

[Sports Today reporter Kim Tae‑hyung ent@stoo.com]
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