George Ishikawa

How far may man intervene in creation to save what he loves? Kaito has constructed an android, Akira, who is deeply devoted to him. But after the death of his brother Haruki, Kaito turns his back on Akira. The latter lets himself be recruited by OSI employees to take part in a Mars mission. He seems to be the right candidate, as he is completely unfeeling. But is he really? And is Haruki really dead?

A special investigative unit called FCIN investigates real-life murders and disappearances by writing up fictional worlds you can enter with a special key. When one of the investigators is murdered by someone in one of these fictional worlds, a young woman named Midori gets caught up in the case.