Everyone on the Clockwork Planet considers Naoto Miura a machinery nut. Every moment of every day, he has his mind on gears and his hands tinkering with delicate mechanical motors. But nobody understand how he can hear and feel gears in operation, even from a long distance away. Then one day, a clockwork maiden falls from the sky, presaging events that would shake the whole world...

Adaptation of the light novel written by Kamiya Yuu and Himana Tsubaki with illustrations by Shino