Yume Ga Nai Kara (夢が無い殻)

“Humanity is in a process of key technological revolution, at this point the first sophisticated artificial intelligences in the form of androids begin to appear. Kenji Kirei, a great fan of androids and science fiction worlds, as well as a researcher, decides to infect an AI android with "Causa Sui", a virus that has been circulating through the network which is said to provide emotions and human “soul”. The story tells the development of the relationship between AI an android and Kenji, a human, as well as the mystery surrounding "Causa Sui".