Clockwork Planet (時計仕掛けの惑星, Tokei shikake no wakusei) is a planet where the story of Clockwork Planet takes place. Clockwork Planet is Earth, which is already destroyed, rebuilt by the genius clockmaker Y 30 years after it had perished. Because the planet is destroyed, humans built cities on top of the gears and built a Core Tower to control winds, temperature, and weather. Since everything is controlled by gears, anyone who understands the structure, thus being able to control the gears, will have a power equivalent to a god.
Clockwork Planet consist of more than 6 million areas supported by 30000 Core Towers, Clock Towers, and Metro Areas.