What would you look like if you were reincarnated as a villainess in victorian era

I have a whole ass plot for this I reincarnate as the female lead's adopted sister who, in the original story, threatens to kill the fl and ends up imprisoned. The female lead is this innocent and kind but naive young girl, and this trait has led to her multiple heartbreaks, and because of that, I will teach her the ways of using her power as the ......   reply