The story follows identical twins Lee Eun-bi and Go Eun-byul (both played by Kim So-hyun ) who were separated at age five when only Eun-byul was adopted.
Despite the challenges and hardships faced by the characters, "Who Are You - School 2015" ultimately presents a hopeful and optimistic view of adolescence. The series highlights the importance of friendship and relationships in shaping our identities and providing support during difficult times. Who Are You - School 2015