'Moja Mussa' Hits 5%: The Sung Dong-il Scene That Changed Everything

JTBC's Saturday-Sunday drama "Moja Mussa" (모두가 자신의 무가치함과 싸우고 있다, Everyone Is Fighting Against Their Own Worthlessness) reached its best ratings yet on its 10th episode, recording 4.3% nationwide and 5.1% in the metropolitan area, according to Nielsen Korea. The numbers shattered the show's previous series high of 3.9% set in Episode 8 — and marked a dramatic rebound from Episode 9's 3.3%, which had felt like a stumble.

The milestone brings the show to roughly double where it began: "Moja Mussa" launched in the 2% range and has climbed steadily through its mid-series run. With only two episodes remaining — airing May 23 and May 24 on JTBC — the drama appears to be building toward a finale that its most devoted viewers have been waiting for.

At the center of the ratings surge: a single scene between two characters that had been circling each other for weeks. When it finally landed, viewers felt it.

The Scene That Changed Everything

Episode 10 opens with Hwang Dong-man (played by Koo Kyo-hwan), an aspiring film director working to complete a screenplay called "Naknaknnak," arriving at a funeral where he spots his primary casting target: Noh Gang-sik (Sung Dong-il), one of Korea's most respected veteran actors, embroiled in rumors that he physically assaulted a junior colleague on a film set.

Where most people in the room were backing away from Noh Gang-sik amid the swirling controversy, Hwang Dong-man walked straight toward him and sat down across the table. His opening line: "Before you hit rock bottom for beating up a junior, why not work with me first?"

The audacity of the approach — a first-time director, broke and largely unknown, propositioning one of the industry's most seasoned names with what amounts to a barely veiled dare — defines what makes "Moja Mussa" work. The show is not interested in easy victories or conventional ambition. It is about people who push past the point where most would stop, not because they are fearless, but because they have decided that failure is acceptable.

Noh Gang-sik turned him away. But the seed had been planted.

Betrayal, Secrets, and a Revelation

While Hwang Dong-man's boldness provided the episode's most electrifying external moment, the drama's internal politics were building toward their own climax. Oh Jeong-hui (Bae Jong-ok), a cunning industry veteran who has long operated in the shadows of more visible talents, finally figured out what viewers had begun to suspect: the anonymous co-screenwriter of "Naknaknnak," known only by the pen name "Yeong-sil," is her own daughter, Byeon Eun-a (Ko Yoon-jung).

Oh Jeong-hui's response was not parental pride. It was calculation. She began quietly working on producers and the film's director Majaeng (Kim Jong-hoon), suggesting that the screenplay's sensibility was too feminine for its lead — a thinly veiled argument to sideline Noh Gang-sik in favor of a different casting choice. Meanwhile, she confronted Byeon Eun-a directly, questioning why someone with her talent would hide behind a pseudonym.

"You could be enormous," Oh Jeong-hui told her daughter. "Why would you shrink yourself?"

The pressure from multiple sides — Oh Jeong-hui undermining her, production company CEO Choi Dong-hyun (Choi Won-young) pushing for rewrites — eventually drove Byeon Eun-a to the edge. When CEO Choi turned openly hostile, she broke: "I am Yeong-sil. I am the co-writer Director Majaeng has been hiding."

The revelation landed like a stone in still water, rippling outward in directions that even Byeon Eun-a could not fully anticipate.

Sung Dong-il's Moment of Decision

Meanwhile, Noh Gang-sik's position was deteriorating. The film "My Father," which he had been counting on, had been taken from him by Oh Jeong-hui's maneuvering. Now "Naknaknnak" appeared to be slipping away too, with the pro-replacement campaign gaining momentum.

Hwang Dong-man returned. He had not revised his approach — he doubled down on it. Arriving at Noh Gang-sik's studio space, he launched into a monologue about a leather jacket he had been wearing since the show's beginning: he claimed it once belonged to a World War II soldier who survived a bullet hit because of it, and that he intended to walk into "the heart of history" wearing it.

It was, on its face, absurd. And yet Noh Gang-sik listened.

The final provocation that broke him was simpler and sharper than anything that came before. "What's the point of all that money," Hwang Dong-man said, "if your life story is boring?"

Something shifted. Noh Gang-sik, who had built a career on instinct and stubbornness, heard a version of himself in the young director's recklessness. He agreed — not just to consider the project, but to commit to it. He even offered to take the role at half his usual fee, a decision that stunned everyone in the room.

Producer Goh Hye-jin (Kang Mal-geum), afraid the moment would evaporate before it was official, lunged for a contract. Noh Gang-sik signed. His final declaration: "Let's just do it. Let's march into the heart of history."

Viewers who had been watching the build-up for weeks described the moment as cathartic — a release of narrative tension that the show had been carefully constructing since its earliest episodes.

Park Hae-young's Formula, and Why It Takes Time

"Moja Mussa" is written by Park Hae-young, the same screenwriter behind JTBC's beloved 2018 drama "My Mister" (나의 아저씨). Park's work is not designed for immediate gratification. Her characters carry genuine weight — past failures, self-doubt, suppressed ambitions — and they move slowly through the world, looking for reasons to believe that any of it matters.

The approach has consistently produced dramas that start modestly and deepen over time. "My Mister" was famously divisive in its early weeks and went on to become one of the most acclaimed Korean dramas of its era. "Moja Mussa" appears to be following a similar arc: early episodes provoked mixed responses (including some controversy over a Scene 9 moment between Koo Kyo-hwan and Ko Yoon-jung that divided audiences), but the show's underlying architecture has been quietly doing its work.

The casting of Koo Kyo-hwan — an actor who has built a reputation for intensity and commitment in films like "The Gangster, the Cop, the Devil" and "Space Sweepers" — alongside the warmth and reliability of Sung Dong-il was always a deliberate contrast. The chemistry between a restless newcomer and a weathered veteran is the spine of the drama's emotional logic, and Episode 10 was where that spine finally became visible to everyone watching.

With two episodes remaining, "Moja Mussa" is in a position that few Korean dramas manage to reach: it is entering its final act with full momentum, a clear emotional throughline, and an audience that is invested in where it lands. The finale airs May 23 and 24 on JTBC at 10:40 p.m. and 10:30 p.m. respectively.