Since the accident when she lost her mother, Yu Sun Wan has been blind for many years. Content with it, she refuses to get an eye surgery, until she meets a certain boy, Park Dong Ju, who is also raised by a single parent. Love blossoms between the two, but due to family problems that require Park Dong Ju to leave and go to the US to help his sickly younger sister, they separate without saying goodbye. Twelve years later, Park Dong Ju, now an excellent surgeon, comes back to Korea to look for Yun Su Wan, but after getting a cornea transplantation in a surgery, she is now full of life, and works as an emergency rescue worker, who is known in the fire department, as well as in the local hospital and the police department. To make matters worse, she is also engaged to another man now.