One of the main themes could be the concept of the magical girl system itself. It might explore how the system is structured and what it means for the girls involved.
Often in such stories, there are supporting characters like the friends or family members of the magical girls. They may not have magical powers but can influence the magical girls' decisions and emotional states. For example, a best friend from school might notice the strange behavior of the magical girl and try to figure out what's going on, adding an extra layer of complexity to the story.
Well, shoujo manga is a genre of manga that focuses on the lives and experiences of young girls. It often has beautiful art, emotional storylines, and explores topics like first love, school life, and self-discovery.
I'm not sure specifically as I haven't read this particular 'zettai ni yatte wa ikenai isekai novel'. It could be about various things common in isekai novels like a protagonist being transported to another world but with some kind of moral or rule that they must not do certain actions (as the 'zettai ni yatte wa ikenai' part might imply).
I'm not sure specifically as there could be many different stories within this light novel. It might be about a magical revolution, perhaps involving characters with special magical powers fighting for change in a fantastical world.
I'm not entirely sure specifically as there could be various 'Mahou Juku' light novels. Generally, it might be about magic, as'mahou' means magic in Japanese. It could involve a story set in a magic school or a world full of magical elements, with characters learning magic, going on adventures, and facing challenges related to magic.
Well, first you need a great story idea that focuses on emotions and relationships. Then, work on creating charming and unique characters. Pay attention to the art style too, making it cute and appealing.