From the introduction: Welcome to Earthland! The land of magic and guilds and demons and friendship. In this world, 10% of all human beings possess the ability to learn and use Magic. You too will become one of these Mages. These Mages gathered into organisations named Guilds, for a variety of reasons. A desire to work together for money, a desire to seek knowledge with the help of others, a desire for companion ship or friends or even a simple desire to have a family. These Guilds take many names but the most famous amongst them, and the most important for the world, is the guild Fairy Tail.