It portrays what happens after the dirty Kim Hye-in, the only witness to the murder of a high school girl, moves to Cheongdam International High School, where everyone wants, and meets Baek Je, the main suspect.

Two people stuck in their lives become haenyeo divers, finding healing and new meaning in the sea as they confront their pasts and fears together.

Hyeon soo a CEO of a private detective agency visits a pension with a client asking for her dog While waiting outside of pension he is falsely accused of kidnapping the client.