What's the use of her remembering/dreaming about her past life?
May contain spoilers
Probably learning information, past memories can be utilized. I also think that it could just be something about her personally? Like she reincarnated and now is a the only princess, compare the two lives? These are just guesses based of other stories that I’ve been reading though










They wouldnt be alive if Callisto didnt win the war. Next time let them be the front liner