When Chu Sun-young's family goes bankrupt, she finds shelter with her mother's friend and spends twenty years living in the Seo household alongside the Seo brothers, Seo Kyung-hoon and Seo Kyung-jin. The two brothers cherish her deeply—until Jo Young-ji, the housekeeper's daughter, arrives and everything changes. Framed and tormented by Jo Young-ji's schemes, Chu Sun-young is bullied and gradually pushed away from the Seo brothers. Her first love fades like a moon stripped of its light, and wounded by it all, she finally resolves to marry the young master of the Yoo family and leave the Seo household behind. Once she's gone, the Seo brothers learn the truth—but it's already too late. In the end, Chu Sun-young finds herself again and begins a new life together with Yoo Jin-woo. [STORYMATRIX PTE.LTD]