God

A Human shaped super intellectual mathematician accidentally created the universe according to some deliberate design. And later he realized that the whole of his creation was running according to the will of Satan and Satan could spell the apex of his creation to the brink of destruction. And he could save the humanity if destroys the Satan. And if he destroys the Satan, he himself will be destroyed, and then there can be no meaning of existence. So he decides to wind up the clockwork, even before Satan could spell the end of humanity. But at the same time God thought he would be utterly maniac if he destroys the humanity instead of saving it by some means. Meanwhile an accident smashes the earth like a hammer smashing a window. And intelligent predator who began as a mineral and then emerged into plant life and into the animal state and then to being human dooms to extinction.