Life is hard for resolute high schooler Eun Ha Won (Park So Dam). When her mother dies in a traffic accident, she finds herself all alone in the world. She has broken off contact with her father and stepmother – and she is so poor, she doesn’t even have enough money to store her mother’s burial urn at the cemetery. And on top of all that, she has upcoming university tuition fees to pay... Undaunted, she resolves to work her way through her difficulties, taking on no end of odd jobs. And then, one fateful day, she is hired by a young man named Kang Hyun Min (Ahn Jae Hyun). Kang Hyun Min wants her to be his date for the day when attends the wedding of his grandfather, Kang Jong Du (Kim Yong Gun). At the wedding, Kang Jong Du notices that Eun Ha Won has a no-nonsense personality – and decides that she would be the perfect live-in housekeeper (and minder) for Kang Hun Min and his two cousins. Still desperate for money, she agrees – and sets about trying to tame these three spoiled young men! But what will she do when she discovers that all three of the cousins appear to have developed feelings for her? Cinderella and Four Knights is a 2016 South Korean drama series directed by Kwon Hyuk Chan and Lee Min Woo.