One day, all the stars fell of the sky and gathered in small gemstones. Since then, the sky became completely black.
Several organizations formed to find the jewels spread all around the world. Among them, pirates, called Star's lords. They raised magic creatures, "Aurores", because as the morning chases away stars, those can feel and localize star's stones.
Syria is one of these pirates, collecting gemstones to sell them or keeping the most beautiful to decorate her clothes and jewels.