This drama tells the story of a vampire, Park Ji-sang who works as a doctor in a hospital. Yoo Ri-ta is a hotshot heiress doctor, a star physician at the hospital and the niece of the board’s chairman. She’s snooty and cold, but highly capable, and accustomed to being the golden girl. Lee Jae-wook is their chief, an outwardly gentle, inwardly ambitious man who will prove to be their biggest adversary.

Yoon Soo-wan and Park Dong-joo 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. 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?