What Makes Cha Seo-an Shine in ‘21st Century Great Lady’? Discover the Behind-the-Scenes Secrets!

Yoon Dong-eon | 2026.05.03

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[Sports Seoul | Reporter Yoon Dong-eon] Actress Chae Seo-an has been sharing behind-the-scenes photos from the set of the drama 21st Century Grand Lady, revealing the buoyant energy she’s known for.

On May 2, Chae posted several photos to her social media with the caption: “Whose Taejoo is it? Sorry, Secretary Do. It was on purpose. My father is actually sweet. Thanks for the young lady’s family photo. i♥u.”

In the comments, Lee Yeon — who plays Secretary Do — chimed in with a playful remark: “You body-slammed me like a Pokémon!”

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The images show the Seong family dressed in traditional hanbok for the wedding scene between Sung Hee-ju (played by IU) and Prince Ian (played by Byeon Woo-seok). The cast posed for a warm family portrait in wedding attire, their bright expressions capturing a convivial set atmosphere.

Chae plays Han Da-young, IU’s sister-in-law, on 21st Century Grand Lady. She previously appeared opposite IU in the series Totally Fooled, playing Mrs. Hak, and their renewed pairing has drawn viewers’ attention. hellboy321@sportsseoul.com