Kioshi is grieving the loss of his close family and friends, From the moment they died, he was able to see demons. This world of coexisting humans and demons is made up of contracts, rules and mutual understandings. But what will happen when one of those demons, Nekeo, refuses to follow this natural order? As Kioshi and Nekeo spend more time together, it becomes harder to determine just who is taming who, as they both begin to capture each other's hearts.