Drama: Teach You a Lesson
Type: Drama
Format: Standard Series
Country: South Korea
Episodes: 10
Aired: Jun 5, 2026 – Jul 3, 2026
Aired On: Friday
Genres: Action, Thriller, Comedy, Drama
Duration: 60 min.
Content Rating: 15+ – Teens 15 or older
Synopsis
School teachers have a hard time to discipline students and they often don’t even have the will to do so. The authority of the teachers in the classroom breaks down and this causes serious social issues. The National Assembly and the Minister of Education passes the Amendment to the Act on the Protection of Teachers’ Rights.
With the passage of the law, a new government organization, the Educational Rights Protection Bureau, is formed. Na Hwa Jin belongs to the Educational Rights Protection Bureau. His team is sent to different problem schools as supervisors. There, they can educate the students without any restrictions or limitations.
Cast
Main Roles
- Kim Mu Yeol as Na Hwa Jin
- Lee Sung Min as Choi Gang Seok
- Jin Ki Joo as Im Han Rim
- P.O as Bong Geun Dae
Support Roles
- Kim Jong Soo as Hwang Gi Tae [Assemblyman]
- Lee Bong Joon as Cho Gyu Cheol [Ga Yun’s student]
- Kim Byung Chun as Lee Cheol Myeon
Guest Roles
- Kim Eun Seok as Principal Kim (Ep. 1)
- Kim Do Geon as Kim Gwang Su (Ep. 1)
- Jeong Soo Hyun as Park Dae Seok [Student] (Ep. 1)
- Lee Seung Gyu as Ryu Jun Hyeong [Bully student] (Ep. 1)
- Song Young Gyu as Ryu Jong Pil [Jun Hyeong’s father] (Ep. 1)
- Jeon Kwang Jin as [Teacher] (Ep. 1)
- Kwak Kyoung Hwa as [Teacher] (Ep. 1)
- Park Wan Kyu as [Dae Seok’s father] (Ep. 1)
- Choi In Sun as [Subsitute teacher] (Ep. 1)
- Jin Shi Won as [Reporter] (Ep. 1-2)
- Kim Chan Hyung as Du Mok (Ep. 2)
- Lee Kwang Hee as Gwang Gi [Bully student] (Ep. 2)
- Lee Tae Hwan as Jang Gwon Hyeok [Bully student] (Ep. 2)
- Seong No Jin as [Principal] (Ep. 2)
- Byun Yoon Jeong as [Hyeong Ju’s mother] (Ep. 2)
- Choi Sol Hui as [Assemblywoman] (Ep. 2-3)
- Ok Jin Uk as Cho In Beom (Ep. 2, 4)
- Jeon Bong Seok as Kim Hyeong Ju (Ep. 2, 4)
- Yoo Tae Joo as Park Seong Hwan (Ep. 2, 4)
- Seo Dong Hyun as O Jung Hwan (Ep. 3)
- Park Bo Bae as Park Hyeon Ju (Ep. 3)
- Kwon Hyuk as Ko Yeong Su [Teacher] (Ep. 3)
- Park Yong as [Principal] (Ep. 3)
- Jeong Seo Yeon as [Yeong Su’s wife] (Ep. 3)
- Lee Si Young as [Seon Yeong’s friend] (Ep. 3)
- Park Seo Yoon as Han Ye Ri [Bully student] (Ep. 3-4)
- Lee Sang Hee as Jung Seon Yeong [So Yeon’s high school teacher] (Ep. 3, 10)
- Sim Su Bin as Jung Su Jeong [Student] (Ep. 4)
- Bae Jun Hyung as Park Hyeon Ung [Student] (Ep. 4)
- Choi Duk Moon as Cheon Sang Yeol [Head of Academic Affairs] (Ep. 4)
- Han Ki Jang as [Lawyer] (Ep. 4)
- Lee Hannury as [Teacher] (Ep. 4)
- Park Seung Hyun as [Detective] (Ep. 4)
- Kim Tae Yoo as [Institute staff] (Ep. 4)
- Lee Dong Ho as [Institute teacher] (Ep. 4)
- Kim Seon Hwa as [Su Jeong’s mother] (Ep. 4)
- Gu Bon Jin as [Hyeon Ung’s father] (Ep. 4)
- Park Kwan Woo as [Han Rim’s classmate] (Ep. 4)
- Ok Il Jae as [Prosecutors’ office investigator] (Ep. 4)
- Baek Ji Hye as [Gi Tae’s assistant] (Ep. 4, 9)
- Kim Ye Rin as Yeon Seo (Ep. 5)
- Jang Hee Jung as Lee Yeong Mi (Ep. 5)
- Kang Ji Eun as Kim Ji Eun [Principal] (Ep. 5)
- Song Si An as Choi Ji Seon [Teacher] (Ep. 5)
- Park Ji Yun as Lee Ji Yeong [U Jin’s mother] (Ep. 5)
- Kwon Dong Ho as Kim Seok Hyeon [U Jin’s father] (Ep. 5)
- Choi Ja Woon as Kim U Jin [Hyeonjung elementary school student] (Ep. 5)
- Choi E Jun as [Student] (Ep. 5)
- Kim Eun Ho as [Student] (Ep. 5)
- Park Si Hyeon as [Student] (Ep. 5)
- Han So Hyun as [Bank teller] (Ep. 5)
- Lee Eun Joo as [Prosecutor] (Ep. 5)
- Kim Sung Yong as [Bank manager] (Ep. 5)
- Lee Ji Hae as [Seo Jun’s mother] (Ep. 5)
- Han Seon Ae as [Student’s mother] (Ep. 5)
- Kim Su Yeong as [Student’s mother] (Ep. 5)
- Yoon Hyun Gil as [Jin Seon’s mother] (Ep. 5)
- Choi Young Min as [Ministry of Education staff] (Ep. 5)
- Park Gang To as [Ministry of Education staff] (Ep. 5)
- Kim Chae Eun as O Yun Jin (Ep. 6)
- Lee Hyung Joo as Teacher Lee (Ep. 6)
- Kim Yu Bin as [Student] (Ep. 6)
- Eom Ji Man as [Detective] (Ep. 6)
- Ahn Chan Woong as [Detective] (Ep. 6)
- Bae Seong Il as [Prison warden] (Ep. 6)
- Yeo Min Goo as [Min Su’s father] (Ep. 6)
- Cho Yu Jin as [Ji Ung’s mother] (Ep. 6)
- Jang Ji Yong as [Du Hyeon’s father] (Ep. 6)
- Kim Kyun Ha as Kim Su Gyeom (Ep. 6-7)
- Do Geon Wu as Na Jung Hwan (Ep. 6-7)
- Jang Yo Hoon as Min Ji Ung [Four Juvenile Delinquents’ leader] (Ep. 6-7)
- Bae Jae Young as Lee Jae Yun [Student] (Ep. 7)
- Jo Eun Sol as Sin Ji Su [Illegal gambling site ringleader] (Ep. 7)
- Seo Hye Min as [Teacher] (Ep. 7)
- Choi Joon Kyu as [Gang member] (Ep. 7)
- Chun Myung Woo as [Gang member] (Ep. 7)
- Jo Hyun Woo as [Jae Yun’s father] (Ep. 7)
- Lee Seo Won as [Jae Yun’s mother] (Ep. 7)
- Kim Tae Young as Jung Hyeon Min [Student] (Ep. 8)
- Yoon Young Min as [Advisor] (Ep. 8)
- Chang Eun A as [Da Hui’s mother] (Ep. 8)
- Seo Young Hee as [Hyeon Min’s mother] (Ep. 8)
- Kim Da Hwin as Attorney Yun (Ep. 9)
- Park Ji Won as [Chi Ho’s mother] (Ep. 9)
- Jeon Young as [Seong Gu’s mother] (Ep. 9)
- Kim Jae Seon as Lee Chi Ho [Gang leader] (Ep. 9-10)
- Lee Woo Je as Jang Seong Gu [Student] (Ep. 9-10)
- Jeon Seung Hun as Seo Tae Hun [Bully student] (Ep. 10)
- Ha Young as Choi Ga Yun [Hwa Jin’s fiancee]
- Choi Jae Sub as Kang Jun Man [Correctional Officer]
Final Thoughts
“The Penthouse Season 3: War in Life” is a highly dramatic, intense melodrama focused on wealth, power, and revenge. The high-stakes environment of the elite social circle guarantees gripping storylines, deep character conflicts, and emotional intensity.
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