Just thinking about him makes Min Ah's heart skipped a beat. His kindness, was it all just a play or was it the real thing?

Choi Min Ah is the daughter to a rich business man. For a rich girl, she's a pitiful person; everyone that she loved, walked away from her life. Not only that, she had lost her memory due to the accident when she was little, making her forget her friend, Kibum. She grew up with Kim Jonghyun, as her best friend. Then a tragedy came, Jonghyun had to leave Min Ah for the States. Her mother appointed a butler, to make her forget about Jonghyun completely. That butler happens to be Key, her old friend (Kibum). Key had fallen in love with her but was afraid to admit it. As for Min Ah, she is infected with an incurable disease, a disease that will lead to death. Her father appointed her a personal doctor to look after her. 

Is the doctor able to cure her?

Will she be able to find true love and happiness?