Here's an old favorite. Adapted into an anime series, Someday's Dreamers. Please keep seeding.
Yume Kikuchi, a girl who can use magic, goes to Tokyo to be an apprentice mage to the handsome Masami Oyamada (a professional mage). In Tokyo, Yume learns about magic, helping people, and various other things on her way to being a mage. but she soon also finds out that even just magic alone isnt enough to make someone truly happy...