Children of the Stars

In a planet, much like our own. Twelve kids are chosen from around the world to fight an extraterrestrial being. Nobody knows anything else about this, and only a small group of people actually know about the choosing itself. These children are called the children of the stars and are named after the twelve zodiacs. The story revolves around one of the children, named Bianca, her zodiac is Scorpio (the scorpion) and tells the adventures of all the kids as they learn about their own powers, undergo their training and eventually, fight the being.