At a young age, Song Eun Jo (Moon Geun Young) learned that the only way to get through life was to be strong and trust no one. Raised by her manipulative, money-hungry mother, Song Kang Sook (Lee Mi Sook), Eun Jo spent her entire childhood being dragged from one broken home to another. Knowing that no place would be home for long, Eun Jo never allowed herself to become too comfortable, nor too close, to those she was forced to call family.
Always wary of her mother’s schemes, Eun Jo isn’t phased when her mother announces that she’s married Goo Dae Sung (Kim Kap Soo), the head of a traditional rice wine brewery. Moving in with Dae Sung and his bubbly daughter, Goo Hyo Sun (Seo Woo), Eun Jo is treated with a kindness the likes of which she’s never known. Completely unable to process this strange turn of events, Eun Jo initially shuns the kindness of her stepfather, seeking solace in the form of an unlikely friendship with Ki Hoon (Chun Jung Myung), a brewery employee who immediately sees through her well-rehearsed tough girl act. An act that, with a little love and kindness, slowly begins to melt away.
As Eun Jo slowly settles into her new life, Hyo Sun begins to resent her as she sees her father’s affection shifting towards her stepsister. Driven by jealousy, Hyo Sun does everything in her power to make Eun Jo’s life miserable. Can such polar opposites ever find a way to get along or will their sibling rivalry ruin any chance either of them have at finding their very own happily ever after?
A modern day adaptation of the classic fairy tale with a twist, “Cinderella’s Sister” is a 2010 drama directed by Kim Young Jo and Kim Won Seok.