DEBZ_fujo's manga / #Sequel: Kawaikunai Aniki o Aegasu Houhou(4)

I read this before when it was a novel,it was so good. They treated her so badly, but she does get her revenge. Spoiler She also a good artist and she's not biologically her parents daughter but they adopted her because of some reasons and she has some blood relationship with the crown. I don't remember the rest since it was a long time since I read it