I, {Lu Chen}, am the top soldier in the peacekeeping force, but I fell into a time loop on the day the apocalypse broke out - the world resets at three o'clock in the morning every day, and I am the only one who retains my memory. After dying a hundred times, I awakened the ability to be invincible, able to crush zombies with my bare hands and resist missiles. Until the 101st cycle, I met Doctors Without Borders {Su Qingyuan}, and her smile became the only light in the apocalypse. But as the cycle deepened, I discovered that the end of the world was not a natural disaster, but a conspiracy created by the ruler of the old world {Zhao Jin} to seize power. The encounter between Su Qingyuan and I was originally a "problem left over from history" in the chaotic cause and effect. This time, I want to overturn the cycle, kill the mastermind, and take her to see a new world without zombies.