Magi: The Labyrinth of Magic

Aladdin is a boy who has set out to explore the world after being trapped in a room for most of his life. His best friend is a flute with a djinn in it named Ugo. Soon enough, Aladdin discovers he is a Magi, a magician who chooses kings, and he was born to choose kings who will follow the righteous path, battling against those who want to destroy fate.