my next life as a villainess, all routes lead to doom x fem!oc [Book 2]

[This book is written after Book 1, so if you haven't read it, go to my profile and read it to understand this book better!] What if Keith Claes had a twin sister before he was adopted by Catarina's dad, but no one knew that she existed? Will she perhaps, become an enemy for Catarina? or will she become friends with Catarina and her friends? Find out in this book!