It was her past life (first life) before she get reincarnated after her death in her second life (modern world) and she happened to read a novel about it without knowing about that the villain in the story was her...and now she living her third life with all the knowlegde about everything, so she doing all this plan and stuff to survive this time.
You can read the novel, sadly the translator stop translating it becuz some company buy the copyrights
I guess those were missed because the book was written in the perspective of olivia, the fl, so those topics of princess dancing twice with gillian were not originally in the novel in the comic. Those things are coming out now since we are reading 1st person pov (& a bit 3rd person) of the a side villian i guess...n it does sometimes seem that the author is in a hurry to put rapheal and princess together...rn the suspense is her brother, he seems very silent
Hm I don't think her coming of age ceremony has happened yet... Sure it was confusing when she said it's her ex husband as I thought that she got married and divorced lol but naah she was talking about yet to happen future that may not take place as the situation is very much changed as for her attachment to nanny and husband taruma the only explanation is the past memories of cyneha and the one she read in novels but this isn't appropriate that she is feared to shaking

the art is freaking gorgeous but what the fuck is going on in the story?? dialogue is repeated (more or less) several times in different chapters, it's very unclear if she was the princess before because in the introduction it was told as if she knew this world only from the novel and now she adores the nanny and has ptsd, important plot points are skipped in a way that makes it difficult to even tell if they are skipped or just haven't happened yet (like her coming of age or whatever, she supposedly danced with the stalker guy, why weren't we shown that?? isn't that more important than this maid bullshit we've been seeing for chapters), events happen then are forgotten for a few chapters in a jarring way and then picked up again with an even more jarring rehappening (?) of the event, man idek how to explain it... anyway, what a mess...