[Machine Translation] Public Safety and Yakuza, who are under a "sweetheart contract," can feel safe when they are with each other even on deadly missions. Prime Minister Osu finds out that Ichiro and Shirou are pursuing the truth behind a building bombing that took place 20 years ago. Prime Minister Osu calls Shiro in to prevent him from learning the truth about his son Tadashi's involvement in the case. Meanwhile, Ron Aterov, the Joker, the mastermind behind the building bombing, threatens to kill someone important to Ippolito, dividing Ippolito and Shiro. With the two under siege, further danger strikes Ippolito and Shiro...