not sure if spoiler for some so I'll put the content lower
based from what i remembered.
she was initially the protagonist but since readers said she was so common/plain/boring the author switched it up to someone who pretends to be good on the surface but was actually mean or calculating (as we already see in the start of the story )
with how she took MC's fiance and her(mc) later learning that it could lead to Noella being the heir to the family's business.
the villain now in our story (the short blond haired lady that noella tortures) became the protagonist later on
the "partner" would have been the prince. and the final boss would have been our ML.
but this is from what i can remember so idk
So let me get this straight... In the og novel, Noella IS the villainess??