K-drama Perfect Crown controversy explained: Why IU and Byeon Woo-seok apologised over ‘historical distortion’ backlash

Popular K-drama Perfect Crown has landed in the middle of a major controversy after viewers accused the series of distorting Korean history and undermining the country’s sovereignty.

The backlash became so intense that lead stars IU and Byeon Woo-seok publicly apologised to fans, with reports stating IU even became emotional while addressing the issue.

Here’s a breakdown of the controversy and why the drama sparked such strong reactions online.

What is Perfect Crown about?

Perfect Crown is a South Korean romantic drama set in an alternate modern-day constitutional monarchy where Korea still has a royal family. The series stars IU as wealthy chaebol heiress Seong Hui-ju and Byeon Woo-seok as Grand Prince Ian.

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The drama quickly became one of 2026’s biggest K-drama hits thanks to its lavish production scale, royal politics storyline and the pairing of IU and Byeon Woo-seok. However, controversy erupted after Episode 11 aired on May 15.

What was the controversy?

The backlash centred around accusations of “historical distortion” in several royal ceremony scenes. Viewers particularly criticised the drama’s coronation sequence in Episode 11, arguing that certain symbols and rituals portrayed Korea as subordinate to China rather than an independent sovereign nation.

One of the biggest points of contention involved officials shouting “Cheonse” during Grand Prince Ian’s coronation instead of “Manse”.

According to critics, “Cheonse” historically carried associations linked to vassal states under imperial China, whereas “Manse” symbolised sovereignty and national independence in Korean history.

Crown and costume controversy explained

Another major issue involved the ceremonial crown used in the series. Viewers argued that the royal headpiece shown in the drama resembled attire historically worn by subjects of the Chinese empire rather than rulers of an independent Korean kingdom.

The drama was also criticised for tea ceremony scenes that some viewers claimed resembled Chinese cultural traditions more than Korean royal customs. These complaints quickly snowballed online, especially in Korean communities where historical representation and sovereignty-related issues remain extremely sensitive topics.

Why were viewers so upset?

Historical accuracy and cultural identity are deeply important subjects in South Korea, especially when it comes to portrayals involving relations with China and Korea’s historical sovereignty.

Many viewers felt the drama blurred distinctions between Korean and Chinese royal traditions in ways they considered disrespectful or misleading.

The controversy intensified further because Perfect Crown had been marketed as a premium large-scale production reportedly backed by a massive budget.

As criticism grew, the debate expanded beyond the show itself into larger discussions around creative freedom, historical responsibility and cultural authenticity in Korean entertainment.

IU and Byeon Woo-seok apologise

Following the backlash, both IU and Byeon Woo-seok issued public apologies. According to Korean media reports, Byeon Woo-seok apologised for the distress caused and said he would reflect more carefully on future projects.

As per a report in KoreaJoongAngDaily, he wrote, “With a heavy heart, I am writing to those who felt uncomfortable and concerned because of the [series]. During the process of filming and acting, I did not think deeply enough about the historical context and its significance to the show or about how viewers could receive [such mistakes]. Through [their] feedback, I spent time self-reflecting and realized that I — as an actor — must take greater responsibility not only for my performance but also for the message and context behind my projects. I sincerely apologize. I would also like to extend my gratitude to those who supported the work and offered advice along the way. I will strive to partake in future projects with greater caution and care. I am truly sorry."

IU also addressed the controversy during a public appearance and reportedly became emotional while speaking to fans. Several online clips showed the singer-actor bowing deeply and expressing regret over disappointing viewers.

She also tendered a written apology that stated, “As [one of the] lead actors, I am deeply sorry and have a heavy heart for failing to be responsible and for causing great disappointment. I carefully went through every message that viewers left over the past few days. There is no excuse for the fact that I failed to think more deeply about the various historical inaccuracies before acting [in the project]. I have sincerely reflected on and apologize for that. As the drama unfolds with imaginative world-building rooted in our own history [...] I should have studied the script with far greater caution as an actor. I am ashamed that I failed to do so. I will always remember the critiques and opinions that you shared and will approach future projects with greater care and thoughtfulness.”

The production team and director Park Jun-hwa later acknowledged the criticism as well and apologised for the concerns surrounding the historical depictions.

Despite controversy, ratings remained strong

Interestingly, despite the backlash, Perfect Crown continued performing strongly in ratings. Reports noted that the finale achieved one of the drama’s highest nationwide ratings, proving that audience interest in the series remained massive even amid controversy.