——Although it was very sudden, the world has been destroyed. The earth that was once destroyed 1000 years ago was rebuilt by a legendary clock engineer named "Y" with clock devices. The last-place high school student, Naoto Miura, met the automatic doll Ryuju left by "Y" and the genius clock engineer girl, Mari. When their abilities meshed with each other, the gears of fate began to turn. A clockpunk fantasy drama that repeatedly breaks and prolongs life to repair the earth ("Clock Machine Star") that is about to collapse!