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Class of Lies

Title: 미스터 기간제 / Class of Lies
Also known as: Mr. Temporary / Undercover Teacher
Genre: Legal, Crime, School
Episodes: 16 (To Be Confirmed)
Broadcast network: OCN
Broadcast period: 2019-July-17 to 2019-Sep-05
Air time: Wednesday & Thursday 23:00


This is a drama that criticizes the mild punishment of teenagers who commit intense crimes in school that are just as bad as those that occur in society.

Ki Moo Hyuk (Yoon Kyun Sang) is a lawyer with a high winning rate. He only cares about money. Due to a murder case at a high school which he deals with, his reputation as a lawyer hits rock bottom. In order to regain his good name as a lawyer, he sneaks into the high school and begins to work as a temporary teacher with the name of Ki Kang Je. He tries to reveal a secret which the students have.


Main Cast

Yoon Kyun Sang as Ki Moo Hyuk / Ki Kang Je
Geum Sae Rok as Ha So Hyun
Lee Joon Young as Yoo Bum Jin
Choi Yoo Hwa as Cha Hyun Jung


Choi Kyu Jin as Lee Ki Hoon
Han So Eun as Han Tae Ra
Kim Myung Ji as Na Ye Ri
Jang Dong Joo as Kim Han Soo
Byung Hun as Ahn Byung Ho
Seo Ji Young as Woo Eun Hye
Lee Jung Min as Kim So Hee
Wi Ji Yun as Choi Min Ji
Kwon So Hyun as Seo Yoon Ah
Kwon Hyuk as Yang Sang Bae
Lee Bit Na as Lee Ji Eun
Yoon Ji Wook as Kang Woo Jin
Kim Jin as Yoon Kyung Min
Cha Joong Won (차중원) as Jang Jung Tae
Ji Chan as Song Jae Woo
Yoo Sung Joo as Lee Do Jin
Sin Jae Hwi (신재휘) as Joon Jae
Jun Suk Ho
Kim Ye Won
Lee Soon Won
Woo Hyun Joo
Seo Yoon Ah

Production Credits

Production Companies: Studio Dragon, JS Pictures
Director: Sung Yong Il
Screenwriter: Jang Hong Chul

Episode Ratings


Sources: TNmS Media Korea & AGB Nielsen Korea (Nationwide)

*** Different between TNmS Media Korea & AGB Nielson – Here

*** Note: This drama is aired on Pay-TV channel which has fewer viewers than Free-TV channels. So, please don’t be surprised with the low rating. ***


Official Site

Trailer (Coming Soon)

Watch Online in Viki.com (Coming Soon)


  1. 1 : Fishnet Says:

    Looks promising

  2. 2 : OK OK OK Says:

    nice story 🙂

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