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[Double wear + apocalyptic biohazard + multiple female protagonists + cultivation civilization + system panel + decisive killing + relaxed humor] After working hard for a decade, he finally retired. Zheng Guangyi had just celebrated his 60th birthday and was dragged by a top star to get his certificate. He thought he was at the pinnacle of his life, but suddenly his eyes darkened and he physically traveled to a post-apocalyptic continent where biological zombies were rampant. He didn't even have time to figure out what the conspiracy was! As soon as he opened his eyes, he saw two girls covered in dirty clothes and a tattered body with only 30 days left in his life. Bite! The panel is on! The talent "promotion" is ready: consume life energy to promote all things! He looked at the dying biochemical zombie with 50 combat power in front of him, and then looked at his remaining lifespan and 10 combat power points. Zheng Guangyi gritted his teeth and said: "Fight! Use all your life span to fight for a future!" Cut it out with one sword and get the first kill reward! Lifespan, combat power, and divine sword are all there! However, before he could be happy for a long time, the system's cool operation came. The main mission released by the system made him feel so embarrassed... The rewards of the system, apart from being extremely rich for the first kill, are also endless. Let's see how the sixty-year-old old man relied on a "cheating" system to advance to all things in the apocalypse, regain his youth, master the sword of demons, lead the fire of mankind, and become the strongest old man in the apocalypse who shocked the sect and the base city behind the scenes!