Key takeaways
- Yoo Jae Myung plays Moon Joo Yeol, the head of Korea's CSAT question-setting committee, a character who balances institutional authority with eccentric charm and unexpected humanity.
- The film follows Lee Sun Bin as Maeng Bo Ram, a provincial Korean language teacher who accidentally joins the sealed 40-day operation to create flawless national examination questions.
- Yoo Jae Myung aims to authentically portray institutional figures and the complex humanity found within workplace conflict and organizational politics, avoiding caricature.
- Ugly Duckling Ms. Maeng premieres in theaters nationwide on October 28.
The upcoming comedy film “Ugly Duckling Ms. Maeng” follows Maeng Bo Ram (Lee Sun Bin), a Korean language teacher working in a small provincial town whose career takes an unexpected turn when she is accidentally placed on the team responsible for designing Korea’s College Scholastic Ability Test (CSAT), commonly known as the Suneung. This administrative mishap thrusts her into one of the nation’s most secure and highly classified operations.
The High-Stakes Setting
The CSAT question-setting headquarters operates under extraordinary conditions. For forty days, the entire committee remains sealed off from the outside world, working in total secrecy to design what must be flawless examination questions. The work demands absolute precision; every question must be free of typos and open to no possible disputes or misinterpretation.
A Closed System
The isolation of the headquarters creates an unusual workplace environment where the committee members face both the intellectual challenge of their work and the pressure of their confined situation. This setup forms the backdrop for the film’s exploration of how different personalities navigate such an intense, high-pressure environment.
The Committee’s Mission
Creating problem-free questions for a national examination that affects hundreds of thousands of students requires expertise, experience, and an attention to detail that cannot be compromised. The committee’s responsibility extends across all subject areas and requires them to anticipate every possible interpretation a test-taker might bring to their questions.

Moon Joo Yeol: Character Profile
Yoo Jae Myung portrays Moon Joo Yeol, the head of the CSAT question-setting committee. The character embodies a peculiar contradiction: he is simultaneously a figure who can be maddening to deal with while remaining fundamentally likable. Moon Joo Yeol wields considerable authority and handles the various crises and complications that arise at the sealed headquarters without apparent concern.
Authority and Eccentricity
As a veteran of the question-setting process, Moon Joo Yeol commands respect through his experience and expertise. Yet his authority is balanced by an unexpectedly quirky temperament. His occasional eccentric choices and behaviors prevent him from being a conventional authority figure, adding layers to his character that reveal genuine human qualities beneath his commanding exterior.
The Contradiction Within
The stills shared by Soompi show Moon Joo Yeol in moments that capture this duality. In one image, he sits commanding the head of a conference table, gesturing with authority and projecting institutional power. In another, he rests his hand among books while speaking with colleagues, presenting the measured bearing of someone shaped by years of specialized work.
Yoo Jae Myung’s Approach to the Character
Yoo Jae Myung discussed his interpretation of Moon Joo Yeol, stating: “I wanted to naturally portray the kind of adults and members of the older generation who are always around us.” His approach prioritizes authenticity over caricature, seeking to capture the genuine complexity of real people operating within institutional structures.
Beyond the character itself, he emphasized the film’s larger thematic ambition. According to Yoo Jae Myung: “This film strives to humorously portray the many different kinds of people in our world who fight with one another, compromise, resort to underhanded tactics to protect their positions, and yet, amid it all, lead lives guided by sincerity.” This statement encapsulates the film’s attempt to find both humor and humanity within workplace conflict and organizational politics.
A Comedy About Institutional Life
The premise of a provincial schoolteacher accidentally entering this sealed, high-stakes environment provides the film with its central comedic mechanism. The collision between an outsider and an established institutional system, combined with the diverse personalities operating within the committee, creates scenarios that explore both the absurdity of bureaucracy and the common humanity of those caught within it.
Theatrical Release
“Ugly Duckling Ms. Maeng” will premiere in theaters nationwide on October 28, making the film available to audiences across the country on the same day.
Source: Soompi
Frequently Asked Questions
What is Yoo Jae Myung's role in Ugly Duckling Ms. Maeng?
Yoo Jae Myung plays Moon Joo Yeol, the head of the CSAT question-setting committee. The character wields considerable authority while displaying eccentric behavior and revealing surprising human qualities beneath his commanding exterior.
What is the premise of Ugly Duckling Ms. Maeng?
The film follows Maeng Bo Ram (Lee Sun Bin), a Korean language teacher from a small provincial town who accidentally joins the team responsible for designing Korea's College Scholastic Ability Test due to an administrative error. The committee works in a sealed headquarters for forty days to create flawless examination questions.
When does Ugly Duckling Ms. Maeng release?
Ugly Duckling Ms. Maeng will premiere in theaters nationwide on October 28.