Perfect Crown Controversy: Why IU and Byeon Woo-seok Had To Apologise

Perfect Crown was cruising – internationally, of course, but even domestically. The Disney+ romance starring IU and Byeon Woo-seok recently pulled consistently huge global numbers, trending across Asia, and is on track to finish as one of 2026's biggest K-drama hits.

And then Episode 11 aired on May 15 — and within hours, the show was at the centre of a full-blown controversy over historical accuracy and Korean sovereignty.

Both leads have since apologised, and so has the production team.

Here's a breakdown.

What Perfect Crown Is About

Perfect Crown is set in an alternate version of modern-day Korea — one where the country never abolished its monarchy and exists today as a constitutional kingdom. IU plays Seong Hui-ju, a chaebol heiress, and Byeon Woo-seok plays Grand Prince Ian, the king's son trying to navigate palace life.

When their worlds collide — as they inevitably must — Hee-joo, who is not the type to sit quietly and wait for destiny, proposes a contract marriage. To a prince. Because why not?

The supporting cast includes Noh Sang-hyun, Yoo Su-bin, and Gong Seung-yeon as Queen Dowager Yoon Yi-rang. Directed by Park Joon-hwa and written by Yoo Ji-won, the show premiered in April and quickly became one of Disney+'s biggest Korean originals to date.

What's The Controversy?

The backlash kicked off with Grand Prince Ian's coronation scene in Episode 11. Viewers picked out three things, and all of them touched a nerve.

First, the officials in the scene shouted Cheonse instead of Manse. Historically, Cheonse was used by vassal states under imperial China, while Manse signified a sovereign, independent nation. For a Korean coronation, Manse is the term that should have been used.

Second, the crown. Grand Prince Ian wore a guryumyeonryugwan, which was traditionally worn by Chinese subjects of imperial rank. Rulers of independent kingdoms wore the shipimyeonryugwan instead.

Third, a tea ceremony scene involving IU and Gong Seung-yeon also came under fire, with viewers saying the rituals looked closer to Chinese tea traditions than Korean ones.

In short, viewers felt the show portrayed Korea as subordinate to China — a sensitive subject in South Korea, and not the kind of thing you want in a coronation scene meant to celebrate a Korean monarch.

IU and Byeon Woo-seok Apologise

The production team apologised first, on May 16, admitting they hadn't properly examined the historical context behind the show's fictional world. They also confirmed the subtitles and audio from the controversial scenes would be revised for future broadcasts.

The statement read, “We sincerely bow our heads in apology to viewers who watched the drama with love and concern over issues related to the world-building and historical inaccuracies.”

Addressing the controversy directly, the producers added, “We take viewers’ criticism seriously regarding the scene in which the king wore a Guryumyeongwan during the coronation ceremony and officials shouted Cheonse, which was seen as undermining Korea’s sovereign status.”

IU followed on May 18 with a long Instagram post. She reflected on both the controversy and her responsibilities as the drama’s lead actor. She wrote in Korean, translated by Soompi, “Over the past few days, I have carefully read each and every comment that many viewers left. As a lead actor of the drama, I feel I failed to show a responsible attitude and ended up causing great disappointment, and I am deeply sorry. Even now, my heart feels very heavy.”

The singer and actor also admitted that she should have approached the project with greater awareness. “Regarding the various issues of historical verification in the drama that viewers pointed out, I sincerely reflect and apologize—without excuse—for having gone into my acting without thinking more deeply about them. Because this was a drama in which it was important to convey imagination grounded in our own history and the traditional beauty of Korea, I should have read the script more carefully and studied more as an actor, but I did not, and I am ashamed of myself for that. I did not have a proper sense of the issues in advance. I apologize.”

At a fan screening on her birthday at CGV Yongsan I-Park Mall in Seoul, she broke down in tears while addressing the backlash directly, telling fans she'd take responsibility and do better.

Meanwhile, Byeon Woo Seok also later shared a handwritten apology through Instagram. “Over the weekend, I was worried and concerned that my words might end up causing further harm. With a heavy heart, I am writing this to those who have felt discomfort and concern because of the drama,” he wrote.

The actor admitted he had not fully considered the historical implications connected to the series while filming. “In the process of filming and acting in this drama, I did not think enough about what the historical context and meaning contained in it were and how that might be received by the viewers. Through the words of the viewers, I have been led to reflect and look back on myself, and as an actor I have once again deeply taken to heart that I need to approach my work with greater responsibility—considering not only the acting but also the message and context carried by the production. I sincerely apologize.”

He added, “I would also like to thank once again everyone who has cared for “Perfect Crown” and Grand Prince Ian and offered advice. Going forward, I will become an actor who takes on projects with an even more cautious and thoughtful attitude. I apologise.”

The Ratings Didn't Budge

However, none of this has actually slowed the show down.

The finale on May 16 pulled in an average nationwide rating of 13.8 percent, making it the highest-rated programme on Korean TV that night. Globally, Perfect Crown crossed 43 million viewing hours on Disney+ and Hulu, and Disney has called it the most globally travelled Korean premiere on the platform to date.

So yes, the controversy is real and the apologies were warranted. But the audience clearly wasn't going anywhere — which is its own kind of story.