Go back six months before the world was destroyed?! Perhaps this is an opportunity? Or a recurring despair? The Great Plague that struck the earth is a zombie apocalypse. For three years, I persevered to survive dozens of deadly situations in a devastated land. In the end, I was cornered and, trapped among the zombies, died. And... when I opened my eyes again... I went back to that month before the zombie virus broke out in the world! In the next six months, this peaceful world will be destroyed. And only I know that the end is near! Is this the chance that was given to me to survive again in a shattered world?! Six months - is it hope or despair?