Kaito is a university student who moved to the city because of its cheap rent. While killing time at home, a beautiful woman suddenly appears in front of him. Kaito and the woman continue to have sex, but Kaito senses something is wrong.

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?