Complex sentence: The series revolves around the invasion of Earth by an extraterrestrial force called the Nova, and a special force of genetically engineered young women called Pandoras, and their male partners, called Limiters, who are created to combat the Nova.
Split into simpler sentences: The series revolves around the invasion of Earth by an interdimesnional force called the Nova, and a special force of genetically engineered young women called Pandoras. Pandoras fight alongside their male partners known as Limiters, who are created to combat the Nova.