The story is set in 2027, one year after the completion of the fourth conventional war. The new port of the city still has not recovered from the effects of the war, when he feels the explosion caused by the pushed mines. Then, members of the military implicated in the arms trade, bribery was murdered. In the course of the research, section of public safety Дайсукэ Арамаки located Мотоко kusanagi, a cyborg, a master-level hacker assigned to secret unit 501 army. Bato, a man with “eyes that do not sleep,” suspects that kusanagi is by the explosion. In Niihama prefectural police detective Тогуса pursuing his own dual cases of murder and murder of the prostitute. Yes мотоко observed chapter 501 period of secret units Kurutsu and the agents of apes.