In the 200th year of the Wasteland Calendar, radiation runs rampant and civilization has collapsed. Lin Ling is reborn with the painful memories of her death in her past life, returning to the day she was betrayed by her family. Facing humiliation from her stepsister Lin Jiao and Zhao Qian, she refuses to be manipulated and unexpectedly chooses the ferocious and dangerous wilderness lord Lei Xiao. Armed with top-tier healing powers, Lin Ling gathers companions in the perilous wasteland and struggles to survive in the harsh wilderness. Blockades from rivals, waves of beast attacks, and endless conspiracies and traps come one after another. She and her companions fight side by side, breaking through deadly situations and striking back at the enemies who once hurt her.