A thousand years after the world was rebuilt with clockwork, machine-obsessed Naoto Miura becomes the master of an automaton named RyuZU. When this beautiful piece of machinery crashed into his apartment, Naoto’s superhuman hearing allowed him to fix her broken cogs—but little did he know it would land him squarely in the middle of a horrific government conspiracy! Teaming up with a pint-sized clock technician and her trusty bodyguard, they set out to fix more than just the broken gears of the world.