Glad to hear you liked it. So you buy a spell as an item and when you used the item you are taught the spell. However, only people that can do magic and actually learn the spells, so if that character doesn't have mana, they can't learn or use magic. That's why the lady in the magic store in the Capitol says only magic users can learn them. There are a total of 4 characters that can be in your party and two of them can use magic.