Opal and Ava are two regular girls, or so they believe. Two best friends, and yet two polar opposites. And now going into their freshman year of high-school with one goal. Survive. Of-course they only thought they needed to survive the piles of homework and mean teachers. But after finding out they are actually the two spiritual figures Yin and Yang they, must survive against monsters, demons, and angels all out to get them, while still maintaining a 3.0 grade average. But they're not alone, they are assigned five powerful guardians, who also are known as the five hotties of the school. Follow Opal and Ava with their new found lives in "Purpose and Blood."