In a future Japan where crime is rampant, citizens are allowed to use firearms for self-defense. The Recently Armed Police of Tokyo is formed to combat the rising criminal activities with lethal force. Kyohei Tachibana, a talented culinary student aspiring to be a pastry chef in France, faces a dilemma when four young mercenaries recruit him as their cook. Joining Jo, Meg, Sei, and Amy in the gritty underworld of Tokyo, Kyohei embarks on a dangerous path that extends far beyond the kitchen.