*This content was translated by AI.

'21st Century Grand Duchess' IU declares a full-scale war against the world to protect Grand Prince Byun Woo-seok.
In the 10th episode of MBC's Friday-Saturday drama '21st Century Grand Duchess' (script by Yoo Ji-won, directed by Park Jun-hwa and Bae Hee-young, planned by Kang Dae-seon, produced by MBC and Kakao Entertainment), which will air on the 9th, Seong Hee-ju (played by IU) pushes for a divorce from Prince Lee An (played by Byun Woo-seok), causing a stir in the palace along with clan members including Min Jeong-woo (played by Noh Sang-hyun).
Previously, Seong Hee-ju and Prince Lee An (played by Byun Woo-seok) found themselves at the center of controversy after their marriage contract was leaked. Rumors ranging from Prince Lee An colluding with Castle Group to seize the throne to the theory that the assassination attempt on the wedding day was a staged act have crossed the line, further endangering Prince Lee An's position.

In response, Seong Hee-ju plans to fight against the world by demanding a divorce not only from Prince Lee An but also from the cabinet and clan members, aiming to direct all the arrows aimed at Prince Lee An toward herself. Although Prince Lee An has not yet responded to Seong Hee-ju's divorce declaration, curiosity grows over what results Seong Hee-ju's unilateral actions, driven by her momentum to achieve her desired goal, will bring.
Meanwhile, attention turns to the reactions of Prince Lee An and Min Jeong-woo as they watch Seong Hee-ju's unilateral actions. Prince Lee An has not only made every effort to protect Seong Hee-ju from the world's criticism but has also confessed his true feelings toward her on multiple occasions, making his response to Seong Hee-ju's divorce request a focal point of interest.
At the same time, Min Jeong-woo begins to mobilize all his power to stop Seong Hee-ju's actions of taking all the blame. Once the most trustworthy senior-junior relationship, they now harbor different intentions, signaling an inevitable confrontation. This raises questions about Seong Hee-ju's arduous struggle to persuade Min Jeong-woo and achieve the divorce in order to protect Prince Lee An.
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*This content was translated by AI.
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