Pushed over the edge by public backlash mocking her dead friends, Chikage retaliates by attacking her old schoolmates until Wakaba steps in to stop her. Chikage only becomes further unstable after she sees Wakaba and Takashima getting seemingly closer with each other. Pretending to be mentally sound in order to participate in a Vertex battle alongside Wakaba, Chikage attempts to kill her so that she can have Takashima to herself.