Unfriend (South Korean TV series)
Upcoming South Korean television series
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Unfriend (Korean: 언프렌드) is an upcoming South Korean television series based on the crime novel Second Sister written by Chan Ho Kei, starring Kim Seon-ho and Park Gyu-young. It is co-directed by Kim Jee-woon and Park Bo-ram, with the screenplay adapted from the novel by novelist and scriptwriter Joo Won-gyu.
| Unfriend | |
|---|---|
| Hangul | 언프렌드 |
| RR | Eonpeurendeu |
| MR | Ŏnp'ŭrendŭ |
| Genre | Thriller |
| Based on | Second Sister by Chan Ho-kei[1] |
| Written by | Joo Won-gyu[2] |
| Directed by | |
| Starring | |
| Music by | Mowg |
| Country of origin | South Korea |
| Original language | Korean |
| No. of episodes | 6 |
| Production | |
| Producers | |
| Production companies |
|
Premise
The narrative follows Shin Ga-young, an older sister struggling to come to terms with the death of her younger sister, who took her own life after being targeted by an internet witch hunt. Seeking answers, she eventually meets and hires a mysterious hacker known as In-ho (N) to uncover the truth behind the circumstances leading to her sister's passing.[4][1][5]
Cast
Main
- Kim Seon-ho as N[6]
- A mysterious hacker.
- Park Gyu-young as Shin Ga-young[7][8]
- A woman who seeks justice for her younger sister death.
Supporting
Production
Development
On December 7, 2022, at the 'Yong Film Night' event, CEO Lim Seung-yong, announced Yong Film's future lineup. announced Yong Film's future projects. Among these was an OTT series under the working title Mangnaein (망내인; 'In the network'), co-directed by Kim Jee-woon and Park Bo-ram.[23][24] The series adapts the crime novel 'Second Sister' by Hong Kong writer Chan Ho Kei.[4] Yong Film produces the series in collaboration with Anthology Studio and SK Global.[1][25] Kim and Joo Won-gyu adapted the script together.[2][3]
Casting
Casting announcements commenced on March 16, 2023, with Kim Seon-ho offered the lead role.[26][27] The same day, JTBC Entertainment News reported that Park Gyu-young had been offered the female lead; her agency, Saram Entertainment, stated she was reviewing the offer positively.[28] On June 13, news coverage indicated Lee Hong-nae was also positively considering a role in the series.[9] Park Gyu-young's appearance was confirmed in July, mentioned in one of her interview.[29] In November, Park Min-yi confirmed as one of the cast.[19] In December, Kim Seon-ho, while attending the 8th Asia Artist Awards in Bulacan, Philippines, stated the series was slated as his 2024 project.[30]
Filming
The cast completed their first script reading by June 13, 2023, with full-scale filming scheduled to start by the end of June.[31] Filming concluded by January 2024.[32][33]
Post production
Digital Idea handled visual effects for the series.[34] In September 2024, Mowg mentioned that he was still finalizing the music.[35] Speculation in March 2025 suggested a title change to Unfriend and a fourth-quarter release on TVING, but production representatives stated these details remained under internal discussion and were not finalized.[36] In June 2025, SLL mentioned the series as part of their line-up for the end of 2025.[37]