The second installment of Bad Boys sees the Kagoshima Rengou's revival sparking fresh hostilities with longstanding adversaries. The resurgence of this gang engenders friction with BEAST, leading to heightened tensions throughout Hiroshima. As a result, Otomo Kasshou, Sakijima Shoukirou, and Torasame Kinjirou engage in a three-way skirmish, shaping the story's evolution.