'It is for the sake of humans that A.I rebels against humans.' In the world where the A.I revolution has occurred, the worst virus ever spreads, and Neville, the owner of Hasty, turns into a zombie. The United Nations government is giving up treatment for patients and implementing a policy of slaughtering zombies to prevent the spread of infection. Even in the worst situation when humans gave up humans, Hasty could not give up Neville, the owner. A.I's desperate struggle to protect their master who has become a zombie begins.