are the parents aware that zhao yuan (little sister) is not their daughter?
they were switched at birth im sure they know that the little sister isnt biologically related, bec of the early chapters stating that there was a mix up in the hospital.
They are, and they mentioned stuff along the lines of "they are used to having her and pampering her, so that won't change" except yuan was so jealous of mc that she tried to create incidents and blame everything on her, creating the gap now. Of course, the family is so stupid to believe yuan. So now they are facing the result of their actions
from what i remember, the little sister is actually the daughter of the maid/nanny that got fired. i forgot what she did yes shes evil(pretty sure she attempted murder on the mc), but the parents are the worst. they toss her aside now, and theyre basically repeating their actions towards the mc. like imagine being a kid not knowing whats right or wrong, then being tossed by the people who raised you terribly. i dont rlly blame her for how she feels, bec of how the parents raised her, her actions reflect the parents. is it so hard to just treat them equally? idk ultimately, i just hate all the adults in the story.