It is a story about a girl (Osaka) who accidentally got into different world and meet a boy (Amaya) and now she have to face her new destiny to be alive in this new world because there is no going back. she found something unusual here and now she knows that if she want to go back ,then she have to face this creatures. but at the end she don't want to go back because she finds her mate, but still the world was so cruel that they send her back. so, is she able to find her mate?