Princess Anisphia is a ridiculously charismatic protagonist able to lend emotion, humor and excitement into every scene of this manga. Euphyllia is immediately capturing but the depth they give to her makes her a compelling romantic lead and character for the plot. It feels far beyond the bog standard Isaki story where one's past life makes them uniquely equipped to deal with the world but instead Princess Anisphia is likely actively having her dreams hindered by realizing her past life in the modern world. I think the story has really interesting hooks for later conflicts and great romantic hooks for that building relationship between the two women. It's very good.