A little on the wild

There are instances in this world where children are born with animal features, from as little as kitten ears to the full scaled body of an armadillo.The first generation, at only 5, were and placed in a safe natural area - The Sanctuary, and formed clans to compensate for family, marking out individual territories. Once each year, new hybrid babies are left in The Sanctuary for the clans mating pair to find and adopt. Which is exactly why Iwaizumi and Matsukawa are willing to destroy the entire area when their new pups, their babies go missing.