Li Changshou, once terminally ill, is reborn in the perilous era before the Conferred God War. Now a Qi Refiner, he vows to survive by staying hidden, meticulously planning his every move, mastering escape techniques, and refining poisons. His quiet life is disrupted when his master brings him a junior sister, pulling him into unwanted adventures.Reluctantly, Li Changshou reveals his hidden strength, acting with precision and retreating into obscurity afterward. Along the way, he forms bonds and discovers that life holds more than just survival. Balancing caution with courage, Li Changshou finds purpose beyond immortality.