EMT Yoon Soo-wan, who had been blind, and successful surgeon Park Dong-joo were each other's first loves, but were forced to separate due to painful family circumstances. They cross paths twelve years later, but Soo-wan engaged to another.

A melodrama about a man and a woman who are each other's first loves, but get separated at childhood due to a painful family situation and meet again 12 years later. Yoon Soo Wan is legally blind woman who gets her vision back after receiving a corneal transplantation in an operation and decides to embrace life with passion by becoming an emergency rescue worker who is known not only by the fire department, but also by the local hospital. She is a tomboyish character who still fondly remembers her first love from 12 years ago.—Kdrama