I recommend the book "Big Boss Flying on a Sword in the Interstellar Era". The main character, Fengxiao, was in school in the Interstellar Era and rode a flying sword. Her neighbor was a mage who rode a broom. The story had elements of sci-fi space and ancient martial arts mecha. The plot was relaxed and interesting, and the growth and hard work of the protagonist was also very touching. I hope you like this fairy's recommendation. Muah ~π