Round 5 continues with Chika blowing up everything and causing destruction to structures. Seeing Chika as a threat, both Katori Unit and Kakizaki Unit decide to eliminate her. In order to do so, both units activate their Bagworm and attack from two different paths. However, they were held off by Osamu and Yūma respectively.
Both teams are alerted to Chika, but they are unable to take action because of Osamu's Spider. Tamakoma Second holds the advantage with Chika's destructive long-range power combined with the wires. Somei orders her unit to create a provisional alliance with Kakizaki Unit against Chika. By doing this, Osamu and Yūma would either concentrate on one side, or split up their power by attacking the units individually. As long as Yūma doesn't target them, they can pressure Chika. Using Bagworm, both teams move in, and Osamu and Yūma split up; Osamu takes on Katori Unit while Yūma intercepts Kakizaki Unit, managing to cut off Kakizaki's arm.