I'm not sure specifically as I haven't read this novel in detail. But generally, it might be about the princess Makina's journey, perhaps facing challenges, making friends, and exploring new lands on her adventures.
Since I'm not aware of the specific 'Magical Princess Makina Novel', it could be written by an indie author. Indie authors often create unique and interesting stories like this. Maybe it's a new author trying to make a name in the fantasy genre. Without doing some research or having more information, we can't really say for sure who the author is.