Kyogoku (Toshiaki Karasawa) and Ryota (Masataka Kubota) track down the criminals, but once again, their friends begin to split up at the crime scene. Kyogoku, in a fit of momentum, announces a candidate for a new partner! Ryota panics... And then... Kyogoku's daughter Yui (Nozomi Sasaki) finds out that he is her real father, and she and Ryota fall into a strange cohabitation. On the street, guns manufactured with a 3D printer are being distributed by a semi-gangster group, and the dark organization behind it becomes the focus of the investigation. Kyogoku goes undercover to get into the black market. However, Kyogoku is caught in a trap and is again caught in an explosion!