Prelude 1

In this world, certain species of monsters are considered more like animals. Skeletons are considered an endangered monster species that is under the animal classification as they don't usually communicate with others outside their species. Several skeletons get transferred to the skeleton house in a famous zoo. The hope is to increase their numbers and have a large enclosure that mimics their natural environment. Of course, since the skeletons are just as intelligent as most people, it's not exactly easy