Akira, Junpei, Keiko and Kumiko are members of the Rutz Detective Agency, and are always ready for a good case. When a mysterious murder places a top secret floppy disk in the hands of Junpei, the gang suddenly has a conspiracy on their hands of grandiose proportions. Not only have they made an enemy of politicians and shady characters, but also the munitions manufacturer company Yotsuboshi itself! With murder attempts, rampaging machinery and kidnappers to handle, the group must race against the clock to foil the evil scheme before it's too late!
In the year 2808, criminals are no longer just wasting space in prison cells. The Cyber Police have turned to using these “patrons” by giving them a choice. Their sentence, or to work with them to catch other criminals and knock some years off their sentence. But getting off easy isn't, as each criminal is fitted with booby trapped collar that operates on a 24 hour cycle, stopped ONLY if they capture their intended targets. As time runs out on each case, someone's head must roll... the target's, or their own!
Subaru Sumeragi is a descendant of an ancient clan who wields immense powers of the yin-yang. Because of his supernatural abilities, he doubles as an investigator for paranormal crimes and situations in Tokyo. With his twin sister Hokuto and comrade Seishirou Sakarazuka at his side, Subaru soon becomes involved in two cases which may cost him his life!