Kdrama : School 2015 : Who Are You (2015)

SCHOOL 2015 : Who Are You

Go Eun-byul and Lee Eun-bi (both played by 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, 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 friend is Han Yi-an (Nam Joo-hyuk), the school's star swimmer.

However, 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. However, her memory soon 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 using her Dad's authority to make Eun-bi transfer from the school. Luckily, Gong Tae-kwang (Yook Sung-jae), Eun-bi's classmate and the school troublemaker, protects her whenever So-young tries to bully her. Eun-bi also stands up to So-young and disproves her claims about her identity, as well as ruining her plans to have her transferred. Eun-bi tells Tae-kwang her real identity, and Tae-kwang becomes the only person Eun-bi fully trusts. He eventually begins to develop feelings for her.

CAST

• Kim So-hyun as Lee Eun-bi (Go Eun-bi) / 
• Go Eun-byul Kang Ji-woo as young Lee Eun-bi (Go Eun-bi) / Go Eun-byul 
• Go Eun-byul and Lee Eun-bi are identical twins. Lee Eun-bi lives in an orphanage whereas Go Eun-byul, Eun-bi's twin sister lives with a woman who adopted her. Due to bullying, Eun-bi decided to end her life but she was saved by her twin sister. Eun-bi had amnesia after that. When Eun-byul's adoptive mother mistook Eun-bi as Eun-byul, she starts to assume the identity of her twin sister.

• Yook Sung-jae as Gong Tae-kwang 
• Described by his father an idiotic and problematic child, Gong Tae-kwang is widely known as a troublemaker in school. His father is the director of Sekang High School and his mother is a famous actress, but his classmates don't know about this. He is portrayed as a happy-go-lucky person who just wanted to cause trouble, but behind his smile, he was actually a struggling child with a painful life. He suffered a lot but everything changed when he met Lee Eun-bi and stood by her side, even when Kang So-young decided to make her life hell. He developed feelings for her and confessed to her later on.

• Nam Joo-hyuk as Han Yi-an
•  A star swimmer at Sekang High School. He was great childhood friends with Go Eun-byul, and had feelings for her. He starts to question the identity of Eun-byul (who is actually Eun-bi in disguise), but as time goes by, he falls for Eun-bi unknowingly.

Class 2-3

•  Lee Pil-mo as Kim Joon-seok (homeroom teacher) 
• He is pricked by his guilty conscience after a massive cover-up involving the death of one of his students. 
•  Lee David as Park Min-joon (class president)
•  An intelligent and hardworking student who is always at the top of his class. Pressured by his study-centric mother to do well, he feels overwhelmed. 
•  Kim Hee-jung as Cha Song-joo 
• Go Eun-byul and Lee Shi-jin best friend. She is torn between staying loyal to Eun-byul and accepting So-young's friendship advances. After finding out Lee Eun-bi's real identity she also became best friends with her. 
•  Lee Cho-hee as Lee Shi-jin 
• She is best friends with Go Eun-byul and Cha Sung-joo. She is jealous of her friends who seem to have a passion and tries to seek out one of her own. After finding out Lee Eun-bi's real identity she also became best friends with her. 
•  Cho Soo-hyang as Kang So-young 
• A school bully who found pleasure in bullying Eun-bi. Her transfer to Eun-byul's school soon leads to mistrust and problems between the students.