Details Edit

  • Title: 후아유 - 학교 2015 (Hooayoo - Hak-gyo 2015)
    Who Are You - School 2015KBS22015-3

    Who Are You: School 2015

  • English title: Who Are You - School 2015
  • Genre: School, Romance, Comedy, Mystery
  • Episodes: 16
  • Country: South Korea
  • Language: Korean
  • Original network: KBS2
  • Original release: April 27, 2015 – June 16, 2015
  • Runtime: Mondays and Tuesdays 21:55 (KST)
  • Original Soundtrack: Who Are You - School 2015 OST


Go Eun-byul (Kim So-hyun) and Lee Eun-bi (이은비, Kim So Hyun) are identical twins, separated after one is adopted at the age of 5. Eun-bi lives at the Love House, an orphanage in Tongyeong, South Gyeongsang Province, where the younger residents look up to her as a mother figure. However, she hides the fact that she is bullied at school by a gang of mean girls led by Kang So-young (강소영), while teachers turn a blind eye.

On the other hand, Go Eun-byul is studying at Sekang High School, the most prestigious private high school in Seoul's Gangnam District. Eun-byul's best friends are Cha Song-joo (차송주) and Lee Shi-jin (이시진), and she shares a mutual attraction with Han Yi-an (Nam Joo-hyuk), the school's star swimmer. They have been friends since they were 8 years old.

Eun-bi and Eun-byul look exactly alike, but only Eun-byul is aware of the other's existence. Unlike the cheerful Eun-bi, Eun-byul is prickly and secretive.

One day, on a school field trip to Tongyeong, Eun-byul mysteriously disappears. At the same time, Eun-bi is unjustly expelled from her school and jumps off a bridge in a suicide attempt. Ten days later, the injured and amnesiac Eun-bi is mistaken for her twin Eun-byul, and her adoptive mother takes her home to Seoul, where she starts living as Eun-byul. But soon her memory returns. Eun-bi faces many challenges as Kang So Young transfers to Sekang High School and tries to reveal her real identity, as well as use her dad's help to make Eun-bi transfer. Luckily, Gong Tae-kwang (Yook Sung-jae), Eun-bi's classmate and the school troublemaker, protects her whenever So-young tries to bully her. Soon, Eun-bi tells Tae-kwang her real identity, and Tae-kwang becomes the only person Eun-bi can trust. He even begins to develop feelings for her.

Cast Edit

  • Kim So-hyun as Lee Eun-bi/Go Eun-byul
    • Kang Ji-woo as young Lee Eun-bi/Go Eun-byul
  • Yook Sung-jae as Gong Tae-kwang
  • Nam Joo-hyuk as Han Yi-an

Segang teachers of secondary school

  • Lee Pil Mo Professor Kim Suk Joon
  • Do Hee Lee as Senior Vice President
  • Shin Jung Geun as supervisor of students


  • Jun Mi Sun and Song Mi Gyung (mother of Eun Byul)
  • Lee Dae Yeon as Ki Choon Han (Ahn Yi father)
  • June No Min and Gong Jae Ho (father of Tae Kwang)
  • Choi Soo Rin as Song Hee Young (mother of Tae Kwang)
  • Kim Jung Nan as Shin Jung Min (Min Joon mother)
  • In Jung Ki Joon Park as (father Min Joon)
  • Ah Kim and Shin Yi Young (mother of Shi Jin)

Students of class 2-3

  • David Lee and Park Min Joon
  • Kim Jung Hee as Cha Song Joo
  • Lee Cho Hee and Lee Jin Shi
  • Jo Soo Hyang as Kang So Young
  • Doo Sik Park as Tae Kwon Gi
  • Yoo Young as I Jo Na
  • In Sub Jang Yoon Jae Sung
  • Kim Bo Ra as Seo Young Eun
  • Kim Min Suk and Kim Min Seok


  • Young Soo Jung  Joo Ri and Ahn
  • Lee Si Won  and Jung Min Young
  • Yoo Yeon Mi  as Mi Joo Yeon
  • Lee Jin Kwon  Jin Kwon as
  • Oh Yoon Hong Soo as Mother In
  • Park Hee Hwan Kyun Kim Jin (Ep.1)
  • Lee Hyun Kyung  Professor of Tongyoung High School (Ep.1)
  • Yang Kyung Hee  and Park Min Gyeong (ep.1,4)
  • Kim Min Young  and Lee Soo Mi (ep.1,5-6)
  • Park Young Soo  as karaoke Owner (Ep.2)
  • Lee Eun Jung  Eun Young as Mother (ep.2-3)
  • Yoo Hyeong was  as Swimmer School Team (ep.2,5,11,16)
  • Yoo Yeon Mi  as Mi Joo Yeon (ep.5-7,12)
  • Ga Young Kim  ( Stellar ) as school uniform model (Ep.6)
  • Choi Kyu Hwan  as president of the entertainment management company (ep.9)
  • Oh Hee Joon  as man delivering food orders (ep.9)
  • In Seo Jung  Soo and Jung In (ep.12)
  • Sam Hammington  English Professor Sam Hammington (ep.15)
  • Bae Soo Bin Kim Seul Professor Young (ep.16)

Production Edit

  • Director: Baek Sang-Hoon
  • Writer: Kim Hyun-Jung, Kim Min-Jung

Notes Edit

  • First script reading took place March 1, 2015 at KBS Annex Broadcasting Station in Yeouido, South Korea.
  • School Series:
    • School 1 | Hakgyo 1 (KBS2 / 1999)
    • School 2 | Hakgyo 2 (KBS2 / 1999-2000)
    • School 3 | Hakgyo 3 (KBS2 / 2000-2001)
    • School 4 | Hakgyo 4 (KBS2 / 2001-2002)
    • School 2013 | Hakgyo 2013 (KBS2 / 2012-2013)
    • Who Are You: School 2015 | Hooayoo- Hakgyo 2015 (KBS2 / 2015)