Kim Hyuna, an 18-year old artist/writer, believes her life is over when her widowed mother is found dead after her high school graduation.

Out of depression, she completely cuts off her college scholarships and decides to take care and cherish her mothers old library.

With the help of her best friend, Sehun, and her mothers' best friend, who she considers her second mother, Hyuna's able to stay sane.

Until one day, she discovers a mysterious book,

and a mysterious man.