Ngl I'm sorta excited to read the story of a true villain. from the get go she was never the "good" character. This was a revenge story through and through.
If anything, I bet the author is just going to make it like a warning story. "This is what you shouldn't do, kids. If you get too focussed on revenge you'll lose sight of what's truly important and karma will come back to bite you in the arse"