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IU's Shocking Divorce in 'The Grand Heir' 2026: Full Story

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Key Takeaways

Discover the shocking divorce declaration in 'The Grand Heir' episode 9! Learn why IU's character made this sacrificial choice and explore the K-drama's soaring ratings and global buzz. Everything you need to know.

  • 1What is the reason for IU's divorce declaration? → To protect Lee An and the royal family's honor after their contract marriage details were leaked, it was a sacrificial choice.
  • 2What were the viewership ratings for episode 9? → The episode recorded a personal best of over 11% and a peak of 13%, also topping Disney+ globally.
  • 3Why is the episode 10 preview increasing anxiety? → Sung Hee-joo announces her divorce to the entire court, creating shockwaves, and Lee An's reaction is the central focus.
  • 4How has the character Sung Hee-joo changed? → She transformed from a flashy chaebol commoner to one who deeply loves Lee An and emphasizes a sacrificial role.

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In a dramatic turn of events in episode 9 of the MBC Friday-Saturday drama 'The Grand Heir' (21세기 대군부인), IU's character, Sung Hee-joo, tearfully declares divorce from Lee An (played by Byun Woo-seok). This pivotal moment is not a real-life separation but a deeply emotional plot point within the drama's contract marriage narrative.

Quick facts
  • 'The Grand Heir' airs Fridays and Saturdays on MBC.
  • IU stars as Sung Hee-joo, a chaebol heiress in a contract marriage.
  • Byun Woo-seok plays Lee An, the male lead and royal heir.

Based on the original Korean blog post and linked source page, translated and summarized by BackToLink for global discovery.

What Led to IU's Divorce Declaration in 'The Grand Heir' Episode 9?

Episode 9 of the MBC Friday-Saturday K-drama 'The Grand Heir' captivated audiences, achieving new heights in viewership ratings. The climax of the episode featured Sung Hee-joo (IU) informing Lee An (Byun Woo-seok) of her decision to divorce, a scene that left viewers stunned. It's crucial to understand this is a fictional plot device, not a real-life event. Sung Hee-joo's choice stems from a crisis: the contract detailing her marriage to Lee An has been leaked, threatening the royal family's honor. To protect Lee An and the monarchy, she makes the heartbreaking, sacrificial decision to seek a divorce. This context adds a layer of profound sadness to her actions, highlighting her deep affection for Lee An.

IU's Shocking Divorce in 'The Grand Heir' 2026: Full Story

This scene showcased IU's nuanced emotional performance, significantly amplifying the drama's intensity and viewer engagement.

'The Grand Heir' Episode 9 Ratings Soar Amidst Global Buzz

Following the broadcast of episode 9, 'The Grand Heir' once again broke its own viewership records, reaching the high 11% range. The peak moment during the episode even surpassed 13%, demonstrating its immense popularity. Beyond domestic success, the K-drama also claimed the number one spot on Disney+ globally, proving its widespread appeal. IU's portrayal of Sung Hee-joo has silenced early casting concerns, with her emotional performance in episode 9 earning widespread praise and reaffirming her status as a top actress. Her acting deeply resonates with viewers, enhancing their connection to the character and the unfolding narrative.

Why Does the Episode 10 Preview Amplify Viewer Anxiety?

The preview for episode 10, scheduled for May 9th, is intensifying viewer anticipation and anxiety. The trailer reveals that Sung Hee-joo will announce her divorce not just to Lee An, but also in front of key figures like Prime Minister Min Jung-woo (played by Noh Sang-hyun) and other royal clan members, causing widespread shock within the palace. Lee An has yet to give a clear response to this declaration, making his reaction the central focus of the upcoming episode. While their union began as a contract, both characters have developed genuine feelings for each other. It's widely predicted that Lee An will not easily accept this situation, making the wait for the next episode even more agonizing.

IU's Shocking Divorce in 'The Grand Heir' 2026: Full Story 2

The development of their tender emotional connection is keenly anticipated.

Sung Hee-joo's Sacrificial Choice: Viewer Reactions and Character Arc

Initially presented as a somewhat eccentric chaebol heiress, Sung Hee-joo's character has evolved significantly, revealing a deep and unwavering affection for Lee An as the series progresses. Her decision to take on the burden alone, knowing the potential repercussions, evokes sympathy from viewers. The undeniable chemistry between Byun Woo-seok and IU makes Sung Hee-joo's sacrifice even more compelling, with each subtle expression from the actors conveying a rich backstory. Many viewers find the current plot developments far more engaging than the earlier stages of the drama. What are your thoughts on the divorce declaration in episode 9? Do you believe Sung Hee-joo's choice was the right one, or did her solitary approach feel frustrating? Share your opinions in the comments below.

For more details, check the original source below.

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Tags

#The Grand Heir#IU#Byun Woo-seok#K-drama recommendations#Korean TV shows#Contract marriage#Divorce declaration#Netflix Korea

💬Frequently Asked Questions

Why did IU declare divorce to Byun Woo-seok in 'The Grand Heir' episode 9?
In the drama, Sung Hee-joo (IU) declared divorce as a sacrificial choice to protect Lee An (Byun Woo-seok) and the royal family's honor after their contract marriage details were leaked.
What were the ratings for 'The Grand Heir' episode 9 and how was the international reception?
Episode 9 achieved a new personal best viewership rating in the high 11% range, with a peak of over 13%. It also ranked first globally on Disney+, indicating strong domestic and international interest.
Why is Lee An's (Byun Woo-seok) reaction in the episode 10 preview so crucial?
Lee An has not yet clearly responded to Sung Hee-joo's divorce declaration. Given their developing feelings beyond the contract marriage, his reaction is expected to significantly impact the drama's storyline.
How has Sung Hee-joo's character evolved in 'The Grand Heir'?
Initially portrayed as a flashy chaebol heiress, Sung Hee-joo has increasingly shown deep affection for Lee An, emphasizing her willingness to sacrifice and bear burdens alone, resonating with viewers.
Is 'The Grand Heir' available to watch on Netflix in the US?
Yes, 'The Grand Heir' is available to stream on Disney+ in the US, not Netflix. It has gained significant popularity on the platform.

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