Han Eunsoo is the daughter of chief of police Seoul district. Her family a middle wealthed family and they just built their new home from the money her dad earned while he was working. They are now becoming financially stable with her mom opening her fashion business.

She has a very cute adorable younger version of her, her sister , Eunhee who is only nine years old. She is an autistic patient and she cant talk. Nevertheless the sisters are really close and Eunsoo would do anything for her sister.

Eunsoo has finally graduated from high school with flying colours earning a governmental scholarship for her further studied. Her dream is to study medicine and become Doctor. Hence she has decided to go med school in austrailia. There she encounters many series of challenges, discovers about a lot of things and perhaps she may find falling in love with that mysterious, familiar boy.