This story is amazing. The animations in the novel help to really visualize the story more. Writing the story as poetry helped it feel more immersive for me.
Spoiler: I forgot to add these thoughts at the end, but I do think that the "princess" was living with their family who didn't like who they were, so they decided to have complete control over their lives, hence why they feel like a doll. I think that the whole city of suspira and being kept in a tower to hold the city together was a metaphor of them being kept "normal" as a way to hold their own family together.