I Raised His Mistress’s Daughter

Eight years ago, Song Mi Rae saved her husband, Kwon U Jin, at the cost of her ability to bear children. Hiding her identity as the Origin Group heiress, she stayed in the marriage. When they adopted Ji An, she raised her like her own daughter for seven years—only to discover the truth. Ji An is actually U Jin's illegitimate child with his mistress, Han Chae Won. Betrayed and stripped of everything, Mi Rae vows revenge and to reclaim her rightful place.

Synopsis: MyDramaList