Ugly Duckling Ms. Maeng

Ugly Duckling Ms. Maeng: Yoo Jae Myung Plays an Irritating Yet Lovable CSAT Boss in Korea’s Most Secretive Comedy

Imagine being locked away for 40 days with the people who write Korea’s toughest exam. Now imagine your boss is Yoo Jae Myung. That is the delicious setup of Ugly…

October 16, 2026
2 min read

Imagine being locked away for 40 days with the people who write Korea’s toughest exam. Now imagine your boss is Yoo Jae Myung. That is the delicious setup of Ugly Duckling Ms. Maeng, and fresh stills just gave us a closer look at his character.

The Premise: An Honest Mistake with Big Consequences

Maeng Bo Ram, played by Lee Sun Bin, is a Korean language teacher from a small provincial town. Thanks to an administrative error, she lands on the team that creates the College Scholastic Ability Test (CSAT), better known as the Suneung. The question-setting headquarters is sealed off for 40 days, and everyone works in total secrecy to produce questions with no typos and no room for dispute

Ugly Duckling Ms. Maeng

Ugly Duckling Ms. Maeng: Meet Moon Joo Yeol: The Boss You Can’t Quite Hate

Yoo Jae Myung plays Moon Joo Yeol, the head of the committee. He is a veteran question setter with real authority, and he calmly handles even administrative blunders without blinking. He can be strangely annoying, yet oddly impossible to dislike, and his eccentric streak reveals a very human side.

The newly released stills show both sides of him:

  • Power mode: seated at the head of a conference table, gesturing firmly like a true insider.
  • Seasoned mode: casually resting a hand on books while chatting, calm and experienced.

Ugly Duckling Ms. Maeng : Overview

DetailInfo
GenreComedy film
Release dateOctober 28, 2026 (nationwide theaters, Korea)
LeadLee Sun Bin as Maeng Bo Ram
Featured starYoo Jae Myung as Moon Joo Yeol
SettingCSAT headquarters, sealed for 40 days
Core themeSecrecy, office politics and sincerity

What Yoo Jae Myung Says About the Role?

The actor says he wanted to portray the kind of older-generation adults we all know from everyday life. He describes the film as a humorous look at people who clash, compromise and even scheme to protect their positions, while still living sincerely at heart. That blend of satire and warmth is what makes the film one to watch.

Craving more? Check our Korean entertainment news for upcoming releases, or explore our movie updates for more theatrical premieres. You can also catch our K-drama coverage while you wait for October 28.

FAQs

Q1. When does Ugly Duckling Ms. Maeng release?

The comedy film premieres in theaters nationwide in Korea on October 28.

Q2. Who does Yoo Jae Myung play in the film?

He plays Moon Joo Yeol, the powerful yet eccentric head of the CSAT question-setting committee.


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