Who Are You: School 2015 season 1 is available in: Korean [Original] on Netflix UK
후아유 - 학교 2015
Set at a prestigious private high school in Gangnam, Seoul, South Korea. Eun-Byeol is a popular student at the private high school. She goes missing and returns, but she has lost her memory. She tries to find out the truth. The sixth installment of KBS' School series which premiered in 1999.
After losing her memory in an accident, a bullied high school orphan finds herself in the place of an identical-looking girl who's gone missing.