Seok-Won lost 10 years of his memory after a car accident. He now he has trouble identifying his family, friends or even himself. For some reason, he is afraid to find out about his past. An afternoon visit to the hospital leads him to sit directly in front of a crying woman Jin-Young. Finally, Seok-won and Jin-Young fall in love. As the pair prepare for his future, Seok-Won feels like his past slowly begins to emerge.