Yoon Soo-wan (Ku Hye-sun) and Park Dong-joo (Lee Sang-yoon) were each other’s first loves, but were forced to separate due to painful family circumstances. Soo-wan, who had been blind, eventually undergoes an eye transplant surgery that restores her sight.
Twelve years later, Soo-wan now works as an emergency rescue worker, while Dong-joo is a surgeon. They meet each other again, but Soo-wan is engaged to a neurosurgeon, Kang Ji-woon (Kim Ji-seok).
Knowing this, Park Dong-joo decided to keep quiet and not reveal his identity to Soo-wan, and also decided to go back. Will Soo-wan realize that Doctor Dylan Park is her first love, Park Dong-joo? Will they end up together despite all the obstacles that they are going to face?
- Lee Sang-yoon as Park Dong-joo / Dylan Park / Darren Park
A smart and warm-hearted doctor who wants to protect the woman he loves. As a teenager, he was sent to America after his mother’s death from a hit-and-run accident.