At a geisha house, the female androids have gone out of control. They have taken hostage two members of a foreign body, the Minister of Foreign Affairs, the Minister's secretary, and the head of the Minister's Support Association.

The situation is complicated by a feud over authority between the police and the military. Section 9 Chief Aramaki lends a helping hand and brings in his unit to resolve the crisis.

A prototype multiped tank has destroyed two other prototypes and broken out of a testing facility. Section 9, employing its own smaller multiped, the Tachikomas, is brought in to stop it.

The hijacker is using the ID of the tank's designer who had recently died. Whoever is operating the tank, their motives are unknown. Section 9 has little time to figure out these two mysteries before the tank enters the urban area.