Ever since she was young, Eun-jo (Moon Geun-young) has learned to trust no one and live strong on her own. Used to being dragged from one broken home to another by her manipulative, money-grabbing mother (Lee Mi-sook), Eun-jo doesn't know what to make of her mother's latest catch Dae-sung (Kim Kap-soo), the solemn head of a traditional rice wine brewery. Both Dae-sung and his daughter, bubbly spoiled princess Hyo-sun (Seo Woo), warmly welcome wary young Eun-jo into their sprawling home, and treat her with a kindness that she simply can't stomach.

A modern day adaptation of Cinderella with a twist as our Cinderella, Goo Hyo Sun, is loved by everyone whereas her stepsister, Eun Jo, has a dark past and struggles with the fact that her mother starts to care more for Hyo Sun than her.

Long ago, in a majestic Kingdom in China, events on Earth are reflected in Heaven and the sun and moon keep each other in balance. Trouble brews when the mistreatment of girls results in a moon that stubbornly refuses to move in the sky. Soon, the sun threatens to lose balance and fall from the heavens, destroying the Earth. The King knows that in order to restore balance in Heaven, he must first fix an imbalance between boys and girls on Earth. But how? One day, an oppressed orphan named Mei Mei disobeys her scheming stepmother and instead fulfills her destiny by attending the Full Moon Dance. It is there, wearing the magic slippers that her mother gave her before she died, she finally determines her fate … and the fate of her threatened world.