Fukuoka is a peaceful city at first glance, but crime is widespread behind the scenes. It was a fierce battleground for the killer industry, and there was even an urban legend that there were killer specialists. The mayor of Fukuoka mayor, a new employee on the edge of a cliff, a private detective who loves Hakata, a genius hacker information store, a revenge shop that is too beautiful, and a murderer trapped by a dark organization. The mayor's election, in which they are involved in such a strong reaction, and are entwined and spun together. What is the truth behind the case where the political confrontation behind it and the black plot conspire? And when the wrongdoing passes, "killer kill" appears.