Responses
Could it be this one?? >>> https://www.mangago.zone/read-manga/i_thought_it_was_a_common_isekai_story/
beta
Could it be this one?? >>> https://www.mangago.zone/read-manga/i_thought_it_was_a_common_isekai_story/
Basically, main character transmigrates as a novel villainess. At first she really does think the og villainess is a bad person, but then she starts realizing that the og villainess was forced to do bad stuff by like the story system, FL learns this the hard way when she's penalized when she doesn't follow a direct order/storyline to be mean/cruel to the og FL.
The plot twist is that some other characters are also forced to play their role because of the system, especially the love interests.