Hit-Monkey -- often simply Monkey -- has a peaceful existence in the Japanese alps. But it is shattered by the tragic loss of his tribe—setting him on a course of revenge and violence in the very world of humans that are responsible for his plight. He’s a killer of killers with a bit of a rage problem. Throughout the series, he must learn to navigate the struggle between his inherently sweet nature and the evil acts he must commit. It’s through his complicated friendship with the Ghost of Bryce (a former assassin and now, Monkey’s unwanted conscience), that will determine whether Monkey will be consumed by his rage or channel it for good. This is the story of Hit-Monkey.