It’s actually kinda the premise of this old Chinese drama from like the 90s. It’s called the Plum Blossom Birthmark. This woman gives birth to a girl but decides to give her up because the show takes place in old times and she felt her position was threatened because her husband had taken on a concubine so she decides to swap out her baby girl for a boy. She brands the girl with a plum blossom mark on her back so that she can maybe find her later. Years later the little girl and boy grow up and fall in love.
Or 22 episodes of a soap opera
It’s actually kinda the premise of this old Chinese drama from like the 90s. It’s called the Plum Blossom Birthmark. This woman gives birth to a girl but decides to give her up because the show takes place in old times and she felt her position was threatened because her husband had taken on a concubine so she decides to swap out her baby girl for a boy. She brands the girl with a plum blossom mark on her back so that she can maybe find her later. Years later the little girl and boy grow up and fall in love.