Yatogami Kuroh has lost the closest thing he had to a family and answers to no clan, but he carries one last charge from his dead master, Ichigen Miwa: find the next Colorless King and decide whether he deserves to live or die. Before he can begin, he has to recover Miwa's old sword, Kotowari. This manga is the modern-era samurai story that puts Kuroh on the road, ending where the wider K storyline picks him up.