... you know... I don't understand why she's so convinced that this is the Cinderella story? Cinderella literally had nothing unique about it to make you think you transferred into the story rather than transferred into another different world..
Like, being isekai'd into another world seems more logical than believing you got transferred into a story.
And she changed things so much, why would she believe that the story would go the same anyways???
There is no evidence that fairies are real. There is literally nothing showing that she could be Cinderella other than her having 2 daughters and her husband having only a single daughter... which is far from enough evidence...
It's kinda stupid to expect this to be Cinderella with this little info...