March 6, 2035. Motoko Aramaki is a state-of-the-art government network security specialist against terrorism, head of the research department of the giant multinational company Poseidon Industrial. With a partial transcendence of the physical world and presence in a virtual network world, Motoko is a composition of multiple entities and identities, using remote-controlled prosthetic humanoid replacements around the world to investigate a series of strange circumstances.