In a world where games decide everything--even national borders--a genius brother-sister duo aim to put their gamesmanship to the test...to save humanity!

In a world where games decide everything--even national borders--a genius brother-sister duo aim to put their gamesmanship to the test…to save humanity!

Meet Sora and Shiro, a brother and sister who are loser shut-ins by normal standards. But these siblings don't play by the rules of the "crappy game" that is average society. In the world of gaming, this genius pair reigns supreme, their invincible avatar so famous that it's the stuff of urban legend. So when a young boy calling himself God summons the siblings to a fantastic alternate world where war is forbidden and all conflicts--even those involving national borders--are decided by the outcome of games, Sora and Shiro have pretty much hit the jackpot. But they soon learn that in this world, humanity, cornered and outnumbered by other species, survives within the confines of one city. Will Sora and Shiro, two failures at life, turn out to be the saviors of mankind? Let the games begin...!

In a world where games decide everything--even national borders--a genius brother-sister duo aim to put their gamesmanship to the test… to save humanity!

–I know this is sudden, but the world had already collapsed long ago. Earth had died, but the entire planet was reconstructed and reproduced using clockwork – “The Clockwork Planet.” One day, a black box suddenly crashed into the house of Naoto Miura, a high school failure, from above. Inside was– an automata girl. “For me to be forced to sleep for as long as two hundred years from just one little fault, has the intelligence of humanity still yet to exceed even that of a flea?” A gearhead fantasy meshed together by Yuu Kamiya and Tsubaki Himana!