Infinite Zone 23Ⅰ

Due to years of war, the earth's environment has been destroyed and is on the verge of extinction. Humanity has been forced to leave the earth and has been living in cities inside huge spaceships for five hundred years. In order to prevent humans from repeating the same mistakes, the computer system that controls the city deliberately conceals the truth and allows humans to live in a virtual twentieth-century society. Shogo Yahagi, a speed racing enthusiast, never cares about society or world affairs; he and his companions play and race cars every day. Until one day, an old friend of his left him a mysterious super motorcycle. This super motorcycle named Grando turns out to hide a major secret. Using this motorcycle, Shogo discovered that human beings have been living in huge spaceships, controlled by a supercomputer system called Baham...