It just dawned on me that many people in that world know how crazy her brothers are... How did the readers miss that!? Was the Author hiding it for the sake of the story or did they not even know?
Well, that novel focuses more on the heroine more than anyone, so I don't think exposure of the Duke is more than necessary. Amelia died in that novel, so he went over the crazy and straight to homicidal. Also, the 2nd brother never appear in the novel, I think. Probably because Amelia wasn't there anymore.
Why did they change her!? She was perfect as an emerald-eyed blonde!(/TДT)/
https://www.novelupdates.com/series/i-became-the-sole-perfumer-of-a-tyrant/
Apparently, the author requested it,..
I'll just have to read this later, the disconnect is making it hard for me to read.
I think its to make the character stand out, as many of the other nobel women also had blong hair and either blue or green eyes.
Its normal for the MC to have a out of the ordinary hair color to indicate them.