第12話: 池袋で複数の勢力が衝突し、市内全体が混乱に陥る。
2015年9月26日 放送
The various sparks smoldering all over the city explode into a huge disturbance, consuming Ikebukuro. The battle between the Dollars and the Toramaru; the person pulling all the strings, Aoba; Varona’s fierce pursuit of her prey; Celty, hot on the heels of the abducted Akane; Shizuo, still on the run; Izaya, observing the chaos in the city from afar, a smirk on his face. What lies ahead for them all? And amid all the chaos, what kind of answer does Mikado offer? (Source: Official site)