After finishing their irregular warfare overseas, Asuka and Kurumi were enjoying a peaceful student life in Japan. One day, they suddenly received a call from Iizuka. While investigating the truth behind Tamara, who had appeared as an enemy in Ukraine, they learned that she was being coerced into following orders by the Russian military's General Staff through "some method." With the help of the Public Security's Makino and his team, Iizuka and his group managed to uncover the connections between the mafia and the military. They decided to infiltrate the Russian mafia 'Oborotni' with Naruzhny as a stepping stone to rescue Tamara...!? This is the thrilling Volume 9, which also includes a special edition depicting Chisato's activities at the National Police Agency, titled 'Black Belt'!