It was 2 a.m., and it was late at night.The entire suburbs of City A are shrouded in silence. In this quiet atmosphere, the dilapidated factory, which has been abandoned for a long time and is sparsely populated, should be silent.Of course, it just should.If someone stood at the factory gate and listened carefully, he would hear some strange sounds against the backdrop of the surrounding environment.It was the clattering sound of clocks walking and the whimpering moans.