A genetic cataclysm codenamed "Scarlet Rain" swept across the world. 70% Of humans were transformed into bloodthirsty "bone eaters" and the order collapsed into ruins. Lin Mo, an ordinary social animal, struggled in the apocalypse for three years, and finally died of the betrayal of his most trusted brother and lover, but was unexpectedly reborn and returned to 30 days before the disaster broke out. This time, he holds on to the "Doomsday Survival Database" that he sacrificed his life for in his previous life, and vows to build a strong fortress, gather true partners, tear apart the hypocritical mask, and carve a bloody path to survive for himself and those he values in this hellish world before the advent of scarlet.
