Gear of Destiny
It's been 1000 years since Earth has died and been reborn as the Clockwork Planet.
One day, in Kyoto, a black box nearly crushes Naoto Miura, a nerd who surrounds himself with clocks and gears. Inside that box is a beautiful automaton called RyuZU.
Since she is not moving, Naoto sets out to repair her, relying only on "sound".