Ippei Yasuda, the scion of the Yasuda Zaibatsu who has continued his wandering journey, becomes a detective and corrects evil! Recognized for outstanding grades at the police academy, Ippei is assigned to the Kyobashi police station as a new detective.
A bureaucrat in the Ministry of Health and Welfare is murdered. The wealthy detective Ippei Yasuda's line of investigation reveals Takeshi Tsumeyu, a psychiatrist who heals the worries of big names in the political and business world and works behind the scenes as a fixer in the shadows of politics and economics. Ippei buys up the raw materials for Moonsault to fight Tsumeu, who manipulates people at will with the devil's drug, Moonsault, but...
After the internal conflict in the Kanto Ichienkai that was once caused by the Takayama group, until the reconstruction of the Takayama group, the Shima of the Takayama group was kept by the sand group led by Hitoshi Yoshiro. There was a group that was aiming at the sima. The Wuryukai under the same Kanto Ichienkai. After the death of his predecessor, this group, who made a name for himself as a servant, began to repeat dirty business after the young head Tange took over his mark. The sand group and the Wuryukai are in conflict over the Shima of the Takayama group. At that time, Kihara, an old friend of the dragon society, comes from Jin.
A tough and violent battle ensues between Hikaru Gotokuji, who's been assigned as the bodyguard for a popular young entertainer, and the ex-mercenary who is aggressively intent on assassination.
Kiyotsugu Kito, the punisher of darkness, meets Misa, a young widow of Sakakigumi, who is directly attending the Owada group. Misa decides to disband Sakakigumi and return to Katagi, but she overcomes the opposition of her members and she establishes a civil engineering company. Tokuto Mii! This is the gangster Otoshimae!
