Agyeong Sonyeoneun Sarangbatgiga Bukkeureowoyo

When Melody discovers she's a villainess in someone else's story, being a slave dealer's daughter only adds to her guilty conscience. After her mother kidnaps Loretta, Duke Baldwin's long-lost child, Melody tries to comfort the scared little girl and forms a sisterly bond with her. So when the duke finds them, he takes both of them home because now they're inseparable! As the rest of House Baldwin becomes enamored with Melody's warm heart, will she ever learn that she deserves to be loved too?

(Source: Tapas)