In 2077, the “Crimson Mist Calamity” suddenly swept across the globe. Cities were swallowed by eerie red fog, mutated creatures ran rampant, and human civilization teetered on the brink of collapse. At the same time, a mysterious game called Apocalypse Survival appeared out of nowhere, forcibly binding every survivor. Actions in the game were closely connected to reality, and the difference between survival and elimination came down to a single choice. The protagonist, Lin Chen, awakened a “Twin Interface.” In addition to the basic game interface shared by all survivors, he possessed an independent “Rewind Simulation” interface. By spending a small number of survival points, he could preview a pivotal event for ten seconds and rewind to the point where he had to choose. He could use it only a limited number of times each day, with more features unlocked as he leveled up.