A mad counter-terrorist robot goes haywire after a traffic accident and kills armed security guards. Ryōko and Izumida are drawn to the situation after the former had claimed of hearing gunshots. The situation becomes complicated when Izumida's elementary school cousin Mana gets involved and armed tactical teams of Japan Private Police (JPP), a JACES rival, are secretly deployed in order to destroy their own invention and conceal evidence on the victims the robot had killed.
表参道で涼子と泉田は小学6年生の従妹である真奈の相談に乗っていた。すると、不意に涼子の耳が銃声を捉え、2人は現場の青山ブロードウェイへと駆け付けた。だが、そこには多数の遺体が転がっていて…。
