Clockwork Planet Vol. 1 (Kodansha, 2017)

Naoto is a brilliant amateur mechanic who spends his days tinkering with gears and inventions. And the world is a playground - a massive, intricate machine. But his quiet life is disrupted when a box containing an automaton in the shape of a girl crashes into his home. Could this be an omen of a breakdown in Naoto's delicate clockwork planet? And is this his chance to become a hero?