The world he woke up in is long dead, dusted in ashen powder, and yet Keisuke still sees splashes of color as he travels through it. Deserted as this world may seem, might he be able to find something out there in the emptiness?
One day, a black box suddenly crashed into the house of Naoto Miura. Inside was– an automaton girl. “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!