Cha Eun Tae was happily married to Mai until an accident took her away from him. After the passing of his wife, Eun Tae is so shocked that he loses his memory. Numb and lost, he decides to embark on a final trip before following his wife. He finds a photo at home and tries to identify where and how it was taken. During his journey, he meets a mysterious high school girl who might lead him to a side of Mai he had never known existed.
