# Who Are You: School 2015 (후아유)
**Who Are You: School 2015** (후아유 - 학교 2015) is a 2015 South Korean television drama that aired on KBS2 as the sixth installment of the long-running *School* series, starring [Kim So-hyun](https://www.edgepedia.org/kim-so-hyun) in a double role as twin sisters whose lives are exchanged after one of them disappears[1](https://www.koreatimes.co.kr/lifestyle/20150422/who-are-you-to-deal-with-mysteries-of-youth). The series combines the school drama of its predecessors with a mystery plot, following an 18-year-old girl who goes from bullied outcast to popular student after losing her memory[1](https://www.koreatimes.co.kr/lifestyle/20150422/who-are-you-to-deal-with-mysteries-of-youth). It ran for 16 episodes from April 27 to June 16, 2015[1](https://www.koreatimes.co.kr/lifestyle/20150422/who-are-you-to-deal-with-mysteries-of-youth).
| Key fact | Detail |
|---|---|
| Broadcast | KBS2 Monday-Tuesday drama, April 27 to June 16, 2015; first episode at 10 p.m.[1](https://www.koreatimes.co.kr/lifestyle/20150422/who-are-you-to-deal-with-mysteries-of-youth) • [2](https://www.tenasia.co.kr/article/2015042809624) |
| Series position | Sixth installment of KBS's *School* series, which previously returned with *School 2013*[1](https://www.koreatimes.co.kr/lifestyle/20150422/who-are-you-to-deal-with-mysteries-of-youth) |
| Lead cast | Kim So-hyun as Lee Eun-bi and Go Eun-byul; Nam Joo-hyuk as Han Yi-an; Yook Sungjae (BTOB) as Gong Tae-kwang; Lee Pil-mo as teacher Kim Joon-seok[3](https://www.soompi.com/article/715909wpp/btobs-sungjae-kim-so-hyun-and-nam-joo-hyuk-confirmed-for-school-2015) • [4](https://kbsworld.kbs.co.kr/program/view.php?pg_seq=920) |
| Production | Written by Kim Min-jung and Kim Hyun-jung; directed by Baek Sang-hoon and Kim Seong-yoon[5](https://www.tenasia.co.kr/article/2015042816364) |
| Ratings | Average 6.3% nationwide (Nielsen Korea) and 7.4% (TNmS); the finale drew 8.2% Nielsen nationwide[6](https://profillengkap.com/en/Who_Are_You%3A_School_2015) |
| Audience score | 7.6/10 on IMDb from about 3,700 users[7](https://www.imdb.com/title/tt5087824) |
| Awards | Kim So-hyun won the 2015 KBS drama award for Best New Actress[8](https://www.monash.edu/arts/languages-literatures-cultures-linguistics/korean-studies-research-hub/research/your-k-drama-review/3-who-are-you-school-2015-%2C-2015) |
| Signature song | "Reset" by Tiger JK featuring Jinsil, which peaked at number 22 on Billboard's world digital song sales chart[8](https://www.monash.edu/arts/languages-literatures-cultures-linguistics/korean-studies-research-hub/research/your-k-drama-review/3-who-are-you-school-2015-%2C-2015) |
## Premise and plot
The story centers on two identical twin sisters separated in childhood. **Lee Eun-bi** is an orphan raised at the "House of Love" orphanage in the southern port city of Tongyeong; bullied at her school, Nuri Girls High School, she is eventually driven out and decides to take her own life by jumping from a bridge, but someone saves her and she wakes up with no memory[4](https://kbsworld.kbs.co.kr/program/view.php?pg_seq=920). She is then mistaken for her twin, **Go Eun-byul**, a top student and popular "it girl" at the prestigious Segang High School in Gangnam, Seoul, who went missing during a school trip to Tongyeong. Eun-bi begins living as Eun-byul, attending Segang High and taking over her sister's life without knowing whose life it is[4](https://kbsworld.kbs.co.kr/program/view.php?pg_seq=920) • [9](https://www.justwatch.com/us/tv-show/who-are-you-school-2015).
Around the twins, the drama follows classmates and teachers at Segang High. Han Yi-an is a star swimmer who has known Eun-byul since childhood and has feelings for her, while Gong Tae-kwang, the son of the school foundation's chief director, is a troublemaking but lonely student who gradually grows close to the girl living as Eun-byul[4](https://kbsworld.kbs.co.kr/program/view.php?pg_seq=920). The homeroom teacher [Kim Joon](https://www.edgepedia.org/kim-joon)-seok, a Segang alumnus, struggles to protect his students[1](https://www.koreatimes.co.kr/lifestyle/20150422/who-are-you-to-deal-with-mysteries-of-youth). Producers described the show as a youth school drama about students whose life is turned upside down overnight, and as a departure from the earlier *School* entries in setup and story[3](https://www.soompi.com/article/715909wpp/btobs-sungjae-kim-so-hyun-and-nam-joo-hyuk-confirmed-for-school-2015).
## Themes and treatment of school violence
Unlike most previous *School* seasons, the series added mystery elements to the classroom genre; producer Baek Sang-hoon said at the April 22, 2015 press conference that the team wanted suspense and romance among the three main characters, adding that "youth itself is a mystery"[1](https://www.koreatimes.co.kr/lifestyle/20150422/who-are-you-to-deal-with-mysteries-of-youth). The drama also confronted school bullying directly: Eun-bi is isolated by a clique led by Kang So-young while teachers look away, and a central plot point is the death of a student amid her classmates' indifference[8](https://www.monash.edu/arts/languages-literatures-cultures-linguistics/korean-studies-research-hub/research/your-k-drama-review/3-who-are-you-school-2015-%2C-2015) • [10](https://www.tvdaily.co.kr/read.php3?aid=1435210851930953002&gopc=1). A contemporary Korean press survey noted that the series, alongside MBC's *[Angry Mom](https://www.edgepedia.org/angry-mom)*, reflected growing social attention to bullying and violence in Korean schools[11](https://www.kmib.co.kr/article/view.asp?arcid=0923077883). A later Korean academic review of the *School* franchise observed that *School 2015* shifted the series' focus to a single student's story rather than the teacher's viewpoint of many student groups[12](https://journal.kci.go.kr/kdrama/archive/articlePdf?artiId=ART002421820).
## Cast and reception
Kim So-hyun carried the double lead, playing the timid, soft-spoken Eun-bi and the sharp-edged Eun-byul as visibly different personalities; Korean coverage praised the contrast as a main pleasure of watching the show[13](https://www.tvdaily.co.kr/read.php3?aid=1434497726925205002). [Nam Joo-hyuk](https://www.edgepedia.org/nam-joo-hyuk), then a model-actor, and BTOB member Yook Sungjae took the male lead roles, both later major names; the casting of the three was announced before the broadcast[3](https://www.soompi.com/article/715909wpp/btobs-sungjae-kim-so-hyun-and-nam-joo-hyuk-confirmed-for-school-2015). Supporting roles included Cho Soo-hyang as the bullying clique leader Kang So-young and Lee Da-wit as the studious but pressured Park Min-joon[10](https://www.tvdaily.co.kr/read.php3?aid=1435210851930953002&gopc=1).
Ratings rose steadily through the run, from 3.8% nationwide (Nielsen Korea) for the premiere to 8.2% for the final episode, with the TNmS Seoul figure for the finale reaching 11.7%[6](https://profillengkap.com/en/Who_Are_You%3A_School_2015). Kim So-hyun won the 2015 KBS drama award for Best New Actress, and fellow cast members Cho Soo-hyang, Nam Joo-hyuk, and Yook Sungjae received nominations[8](https://www.monash.edu/arts/languages-literatures-cultures-linguistics/korean-studies-research-hub/research/your-k-drama-review/3-who-are-you-school-2015-%2C-2015). The soundtrack's main theme "Reset" by [Tiger JK](https://www.edgepedia.org/tiger-jk) featuring Jinsil was released around June 6, 2015, reached number 22 on Billboard's world digital song sales chart, and had accumulated more than 35 million Spotify plays by August 2022[8](https://www.monash.edu/arts/languages-literatures-cultures-linguistics/korean-studies-research-hub/research/your-k-drama-review/3-who-are-you-school-2015-%2C-2015).
## Series context and legacy
The *School* series began in 1999, and each installment uses a new cast and location, so no prior knowledge of earlier seasons is required; *[School 2013](https://www.edgepedia.org/school-2013)* had revived the franchise after a roughly decade-long gap and helped raise the profiles of actors [Kim Woo-bin](https://www.edgepedia.org/kim-woo-bin) and [Lee Jong-suk](https://www.edgepedia.org/lee-jong-suk)[1](https://www.koreatimes.co.kr/lifestyle/20150422/who-are-you-to-deal-with-mysteries-of-youth) • [8](https://www.monash.edu/arts/languages-literatures-cultures-linguistics/korean-studies-research-hub/research/your-k-drama-review/3-who-are-you-school-2015-%2C-2015). KBS's own English-language service notes the series has served as a launching pad for now well-known actors, and describes *School 2015* as a mystery school romance aimed partly at adult viewers[14](https://www.kbsworld.co.jp/program/detail?prSn=1115).
The show benefited from the [Korean Wave](https://www.edgepedia.org/korean-wave), reaching overseas audiences through subtitled broadcasts; [KBS World](https://www.edgepedia.org/kbs-world) aired it with English subtitles beginning May 11, 2015, two weeks behind the Korean run, and KBS World TV's full-episode uploads on YouTube have drawn tens of millions of views[4](https://kbsworld.kbs.co.kr/program/view.php?pg_seq=920) • [15](https://www.youtube.com/watch?v=NkXw0NMJ3Jk). As of recent years the series is available for streaming on Rakuten Viki and OnDemandKorea[9](https://www.justwatch.com/us/tv-show/who-are-you-school-2015).
## References
1. ['Who Are You' to deal with mysteries of youth, The Korea Times (April 22, 2015)](https://www.koreatimes.co.kr/lifestyle/20150422/who-are-you-to-deal-with-mysteries-of-youth)
2. [어제 뭐 봤어후아유학교 2015 학교 시리즈인지 미스터리물인지 헷갈리네요 | 텐아시아](https://www.tenasia.co.kr/article/2015042809624)
3. [BTOB's Sungjae, Kim So Hyun, and Nam Joo Hyuk Confirmed for "School 2015", Soompi](https://www.soompi.com/article/715909wpp/btobs-sungjae-kim-so-hyun-and-nam-joo-hyuk-confirmed-for-school-2015)
4. [Who Are You (School 2015) program page, KBS World](https://kbsworld.kbs.co.kr/program/view.php?pg_seq=920)
5. [후아유-학교2015 청춘물과 미스터리 만남, 텐아시아 (April 28, 2015)](https://www.tenasia.co.kr/article/2015042816364)
6. [Who Are You: School 2015, profilengkap (episode ratings table, Nielsen Korea and TNmS)](https://profillengkap.com/en/Who_Are_You%3A_School_2015)
7. [Who Are You: School 2015 (TV Series 2015), IMDb](https://www.imdb.com/title/tt5087824)
8. [#3 - Who Are You: School 2015, Monash University Korean Studies Research Hub](https://www.monash.edu/arts/languages-literatures-cultures-linguistics/korean-studies-research-hub/research/your-k-drama-review/3-who-are-you-school-2015-%2C-2015)
9. [Who Are You: School 2015 - streaming online, JustWatch](https://www.justwatch.com/us/tv-show/who-are-you-school-2015)
10. ['후아유' 이다윗 인터뷰, TV Daily (June 25, 2015)](https://www.tvdaily.co.kr/read.php3?aid=1435210851930953002&gopc=1)
11. [폭력·따돌림 민낯 그대로… '학교 드라마' 진지해졌네!, 국민일보 (May 15, 2015)](https://www.kmib.co.kr/article/view.asp?arcid=0923077883)
12. [한국교육예술연구 제62집, KCI journal article on the School series](https://journal.kci.go.kr/kdrama/archive/articlePdf?artiId=ART002421820)
13. ['후아유 학교2015' 김소현의 저력, 이제 열일곱이라는 것이 무섭다 [종영기획①]](https://www.tvdaily.co.kr/read.php3?aid=1434497726925205002)
14. [恋するジェネレーション (Who Are You - 学校2015) program page, KBS World Japan](https://www.kbsworld.co.jp/program/detail?prSn=1115)
15. [[Full] Who Are You: School 2015 EP.1, KBS WORLD TV, YouTube](https://www.youtube.com/watch?v=NkXw0NMJ3Jk)
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*Topic: Encyclopedia › Arts and culture › Screen and stage › Film and television › Series and fictional screen worlds › International serial drama and telenovelas › East Asian drama series › Korean contemporary drama › Thriller, crime, and mystery series*
*Initially written Sep 17, 2026 · Reviewed: Sep 18, 2026; Oct 25, 2026 · Edited: Sep 18, 2026; Oct 25, 2026 · Last review: Oct 25, 2026*
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License: Edgepedia Community License 1.0, https://www.edgepedia.org/edgepedia/license