Kang Je finds out who is the secret sysop of Cheonmyung High's Student Community Portal. He tells the secret sysop that the portal should be shut down. Yun Ah shows So Hyun the student community portal, and So Hyun gets to see the photos of Su Ah. Meanwhile, Kang Je gets to know that Su Ah and Han Su were from the same orphanage.
| Title | Class of Lies - Season 1 Episode 5 The Secret Sysop |
|---|---|
| Year | 2019 |
| Genre | Crime, Mystery |
| Country | South Korea |
| Studio | OCN |
| Cast | Yoon Kyun-sang, Lee Jun-young, Geum Sae-rok, Choi Yu-hwa, Choi Kyu-jin, Jang Dong-ju |
| Crew | Sung Yong-il (Director), Jang Hong-cheol (Writer), Jang Jung-do (Executive Producer) |
| Alternative Titles | 潜入弁護人 Class of Lies, 臨時制先生, Undercover Teacher, Mr. Fixed Term, Mr. Temporary |
| Keyword | jealousy, investigation, high school, murder, legal drama, suspense |
| First Air Date | Jul 17, 2019 |
| Last Air date | Sep 05, 2019 |
| Season | 1 Season |
| Episode | 16 Episode |
| Runtime | 70:14 minutes |
| Quality | HD |
| IMDb: | 7.73/ 10 by 26.00 users |
| Popularity | 25.42 |
| Language | Korean |
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