Star System

While you may see Star Master as weird on the outside, it's a different story on the inside.

Inside lies Star and her teammates, nicknamed "Starmates", that happen to look like her. Each mate exists to help each other out and not cause chaos around (though a few have already broken that.)

Now, this sounds quite fictitious for an imaginative person to have multiple clones of herself inside, but anything can happen with a good enough imagination.