Crime has become so frequent in Japan in the not-too-distant future that the government has legalized firearms for residents to use in self-defense. The Recently Armed Police of Tokyo was founded with the goal of tracking down criminals with fatal force in order to counteract this new wave of misbehavior. Kyohei Tachibana is a talented culinary student who hopes to one day work as a pastry chef in France. He's forced to make a difficult decision when four teenage mercenaries beg him to be their cook. While Jo, Meg, Sei, and Amy take on the bloodiest jobs in Tokyo, Kyohei accepts an impending slide into the realm of crime—and he'll be doing a lot more than cooking!