Aerial Magic is an on-going secondary universe fantasy webtoon by Walkingnorth. I reviewed their Always Human here. Chapter one covers the first twenty-five episodes.
Wisteria Kemp is determined to earn her way into the Aerial Guild, the professional association that regulates aerial magic. The conventional path to membership (at least in modern times) is through university. Having learned the hard way that she is ill-suited for the classroom, Wisteria chooses a more traditional course: an apprenticeship.
Wisteria sends out four hundred applications for an apprentice position. She gets a single positive response, from Master Cecily Moon. Wisteria is invited to work at Moon’s broomstick repair shop in the vast metropolis of Vecrum.
Convinced failure is assured, Wisteria takes with her only her avian familiar Puppy and a small supply of clothing.