An 18 year old girl with so much ambitions and goals gets accepted in Harvard's. She is independent and rich but has a very dark secret that she doesn't want to tell anyone, but her best friend Hyun-jin. She meets a very popular group, and becomes a part of it but never distracts herself from her goals because she worked really hard for this. Her brother from another mother, Hyun-Jin is the only person alive in her old friend group drowned when she was 15. She finds another person close to her.