The lives of identical girls with very similar names – one who disappears without a trace and one who loses her memory – collide in unexpected ways. Lee Eun Bi (Kim So Hyun) grows up in an orphanage and deals with the relentless bullying from a group of girls at her school. Go Eun Byul (Kim So Hyun) attends Segang High School, a top-notch school in Gangnam, but disappears without a trace during a school field trip. As Eun Bi tries to escape from her miserable life and ends up in the hospital with no memories of her past, Eun Byul’s mother (Jeon Mi Seon) thinks Eun Bi is her lost daughter and takes her back to live her life as Eun Byul. As Eun Bi tries to recover her lost memories, can she discover what happened to the real Eun Byul and why she looks so much like the missing girl? “Who Are You: School 2015” is a 2015 South Korean drama series directed by Baek Sang Hoon. It is the latest installment in the elite high school-based series that includes “School 1” (1999), “School 2” (1999), “School 3” (2000), “School 4” (2001) and “School 2013” (2013).