The day when the last day comes

Have you ever thought about what the last day will be< Br> asteroid impact< Br> the sun goes out< Br> is it the ice age or the global tsunami< Br> it seems that everyone is beyond the control of human resources< Br> but on the day when the end came, Han Yi found that he was wrong< Br> human beings can also destroy themselves< Br> when the mysterious countdown presented to him was reset to zero< Br> a wave of gene poison gas has swept the world< Br> humans have mutated into monsters, such as crazy corpses, werewolves, and aliens... however< Br> when the truth of the outbreak of doomsday is revealed step by step< Br> Han Yi suddenly finds out that he is right!