Yep, this is what I got so far:
Everyone is
born under an elemental star, which decides their affiliation for the rest of their lives (only one element per person, even magic users can't learn outside of their element)While everyone has magic abilities, it's something that has to be trained intensively. Some people will even take dangerous shortcuts, such as tattoos or magic runes and items, but those shortcuts have a risk of back-firing or overpowering the user... resulting in a mentally and magically unstable Elemental.
There are six elements overall (fire, water, earth, air, wood, and metal), and each person tends to gravitate towards one aspect of that element. For example, one of my characters uses water magic, but jives with the cold part of the element, thus she uses ice. Another is a fire-user, specifically in heat, and yet another uses air, or sound