Ngl you would react the same way. The advantages of all those “strong female leads” had was that at least in their past life they had someone to count on. She had no one. Girl had to rebuild and mold everything by herself which I doubt you and I could do. Let’s also not forget she died as a teen in her first life. Girl was bound to make some mistakes along the way. She still sees the majesty as her father because even though she knew she wasn’t the real one, she spent literally all her life to please him that of course she would automatically try to reach for any source of love from him. We can say “she shouldn’t call him father.” But, from her perspective can you blame her?
I agree, the frustration was valid but if want to sound rational then put ourselves on character shoes first in the respective era mindset. A teen in Victoria era or maybe way back forced with this kind of problem? It's a miracle i would say that she still not fell into madness if not thanks to past memories n make use of her privileges as princess
But she doesn't have the MEMORIES.
It's literally just a novel she read as a 10yo. She doesn't have a choice to believe it after the incident actually happened to her. In addition to hear 'that' from her own father (that time she still believe so).
A 10yo!!
We as an adult who already read so many plot like this can make plan and made changes to the story.
But as 10yo? She's already strong enough not to fell into depression after that.
God, people are so harsh to her.
Yes, as a reader it's not really exciting. But it's one of the realistic reaction to this kind of story.

I'm I the only one who find the fl irritating and boring. I read many manga like this we're all the fl was very strong and intelligent mind but this one I find them very weak (if I we're her I would never call the majesty father or try to get on his good side. I will simply will told them the truth and disappear . And after this real daughter appear I will disappear forever (● ̄(エ) ̄●)