Who is that man? Why can he know the reasons for the changes in the world? Why couldn't he stop this from happening? After the doomsday came, Bai Xin was panic-stricken. Many unheard of monsters appeared in the world, and what was even worse was that they could be contagious. The helpless Bai Xin can only try her best to survive, but why is there always a strange man around her who seems to be familiar with her and calls him her husband? Who is that man? In the upgrade stream, the female protagonist will become stronger and stronger in the later stage, and the male protagonist will be reborn as a mysterious person, whose identity will be gradually revealed in the later stage.