The Kiba series: Book One; The Claws Of Six

When the human race has been decreased by A terrible force. When the humans' Creation goes out of hand and spreeds over half of the world, infectong almost every animal life form on earth turning them into mutated Creatures known as Demon-beasts. When the humans can't do anything to stop the demon beasts which are in Controll by Spirit-Beasts which are The demon-spirits of every animal speices, The world is in the hands of six unexpected half Human, Half Animal demons with beautious powers; Willow, Rye, Faolan, Sakura, Seven and Rin. They will need the help of Spirits, a rouge spirit-beast, the Tribes of the forest, and each other to servive