Netflix's new Korean drama 'Teach You a Lesson' tops anticipation rankings before release despite Kim Nam Gil's withdrawal
by K-Soul · allkpopOne upcoming series is already drawing intense attention from viewers ahead of its release. Netflix’s new original series 'Teach You a Lesson' has topped viewer anticipation rankings even before premiering, despite facing controversy surrounding its original webtoon and difficulties during the casting process. The project is attracting even more attention because actor Kim Nam Gil previously denied reports that he was considering a role in the drama.
According to Consumer Insight’s “4th Week of May 2026 OTT K-Original Content Viewer Evaluation Report,” 'Teach You a Lesson' ranked No. 1 among upcoming releases with a 10% viewing intention rate. Genie TV drama 'Doctor on the Edge' followed in second place with 3%. The gap suggests that 'Teach You a Lesson' has captured the strongest interest among prospective viewers ahead of its launch.
'Teach You a Lesson' Climbs to No. 1 Ahead of Release Despite Casting Controversy
Set to premiere on June 5, 'Teach You a Lesson' takes place in a collapsing South Korean education system. The series follows the fictional government agency “Teacher Rights Protection Bureau,” created to restore order in schools overwhelmed by unruly students, abusive parents, and failing authority figures. The drama stars Kim Moo Yeol, Lee Sung Min, Jin Ki Joo, and Block B member-turned-actor Pyo Ji Hoon.
The series is based on the webtoon of the same name by Chae Yong Taek and Han Ga Ram, which has been serialized on Naver Webtoon since 2020. The original story gained popularity for its cathartic approach, portraying characters who aggressively solve problems within schools while standing on the side of victims. Netflix’s adaptation is expected to combine comedy, action, and drama through the activities of the fictional Teacher Rights Protection Bureau.
Recently released still cuts heightened anticipation further. One scene shows Kim Moo Yeol’s character Na Hwa Jin gathering students in an auditorium for a lesson, while Jin Ki Joo and Pyo Ji Hoon appear disguised as students, infiltrating a school. The series is expected to depict the bureau’s efforts to directly intervene in broken school environments through fast-paced storytelling and action-heavy sequences.
Its No. 1 anticipation ranking before release also suggests that public interest extends beyond controversy alone. Even viewers aware of the original webtoon’s issues appear curious about how Netflix adapted the material and reinterpreted its themes.
Why Kim Nam Gil Declined the Project
'Teach You a Lesson' faced challenges long before production officially began. The original webtoon previously sparked controversy over alleged sexism and racism, and it was even removed from North American platforms. Critics also raised concerns over the glorification of violence, teacher hatred, sexism, and racial discrimination, leading some to question whether the series should be adapted at all.
Actor Kim Nam Gil, who had reportedly been considered for casting, ultimately stated that he would not participate in the project due to the surrounding controversy. At the time, Kim reportedly said that if many people felt uncomfortable with a project, it was better not to do it. He was also said to believe that he should avoid works that his fans strongly opposed.
His comments reignited public discussion about the sensitivity of the project, shifting the conversation beyond simple casting news into broader debates about how the drama’s themes and controversial source material should be interpreted. Educational organizations, including the Korean Teachers and Education Workers Union, also expressed concerns and released statements urging the production to be halted.
Despite the backlash, production continued. During Netflix’s “Next on Netflix 2026 Korea” event in January, director Bae Jong Byung directly addressed the controversy. He explained that the series was developed out of a sense of responsibility because it tackles issues considered necessary for modern society. He acknowledged criticism surrounding certain episodes from the original webtoon and stated that the production team worked carefully to present the story through a more refined perspective.
Ultimately, the biggest question surrounding 'Teach You a Lesson' is how successfully the series reconstructs the controversial source material. Viewers will likely judge whether the drama simply exploits violent catharsis or meaningfully portrays the realities of the education system and the voices of victims.
Kim Moo Yeol and Lee Sung Min Raise Expectations
After Kim Nam Gil stepped away from the project, Kim Moo Yeol took over the lead role. He plays Na Hwa Jin, a former special forces officer turned supervisor at the Teacher Rights Protection Bureau. Dressed in a black suit, Na Hwa Jin enters troubled schools, sides with victims, and fearlessly confronts villains both inside and outside the classroom.
Kim Moo Yeol has built a strong reputation through films and dramas after first earning recognition on the musical stage. In projects such as 'Eungyo' and 'The Gangster, the Cop, the Devil,' he showcased characters balancing both good and evil, while proving his intense screen presence and action capabilities. In 'Teach You a Lesson,' he is expected to combine charisma, action, and a strong sense of justice. Since the project already carries controversy, much of the drama’s early reception may depend on how convincingly he portrays Na Hwa Jin.
Lee Sung Min also adds weight to the production. He plays Choi Kang Seok, a central figure within the Teacher Rights Protection Bureau who refuses to ignore problems in schools. His grounded acting style and commanding presence are expected to bring balance to a story that could otherwise appear overly provocative.
Meanwhile, Jin Ki Joo and Pyo Ji Hoon complete the bureau’s team dynamic. Newly released stills show the characters approaching school-related problems in their own distinct ways. Director Hong Jong Chan praised the cast’s chemistry, saying that when the four characters finally came together as a team during filming, he instinctively applauded on set.
Controversial Drama or Breakout Hit?
Even before release, 'Teach You a Lesson' is carrying two opposing narratives at once. On one side are the controversies tied to the original webtoon and the casting difficulties. On the other hand are its No. 1 anticipation ranking, Netflix branding, star-studded cast, and promises of explosive action-driven entertainment.
The teaser trailer reflects that duality. It opens with Na Hwa Jin introducing himself as a supervisor from the Teacher Rights Protection Bureau before rapidly showing scenes of school violence, gambling, drug use, classroom disruption, and even organized crime among students. His line, “Don’t worry. We’ll protect you,” reinforces the organization’s role as defenders of victims.
The trailer also emphasizes intense action sequences, including large-scale fights and car chases. At the same time, Choi Kang Seok’s line — “We stand neither with teachers nor students, but with the victims” — suggests that the series aims to raise broader questions about how society should address problems within schools, rather than functioning purely as a revenge-driven action drama.
In the end, the success or failure of 'Teach You a Lesson' will depend on how audiences respond after its release. If viewers feel the drama merely repeats the controversial aspects of the original webtoon, its pre-release buzz could quickly become a burden. However, if Netflix successfully balances social commentary with genre entertainment while toning down problematic elements, its current momentum could translate into a major hit.
The fact that a drama once turned down by Kim Nam Gil is now leading anticipation rankings before release already proves how much attention 'Teach You a Lesson' has generated. Whether it can move beyond controversy and establish itself as one of Netflix’s next breakout Korean originals will be revealed when the series premieres on June 5.
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