Traveling Through Time to Cultivate Immortality, the System Is a Good-For-Nothing Engineer?

In the evening, the two Blue Stars encountered a strange phenomenon that tore the sky apart. In order to save the old man, Wu Ze was struck by lightning. When he opened his eyes again, he was already in the world of immortality where monsters were rampant. Two bronze mirrors connect two people in two different worlds. Facing a life-and-death crisis and being invaded by monsters, Blue Star... How can the two save the world with only the bronze mirror that connects the two worlds?