Shen Yan, who died in a family feud in his previous life, was reborn in the early spring of 1963. His mother, Su Wan, took him and his younger sister, Shen Nian, who was born with heart disease, and died of poisoning on the way to their cousin Wang Laoshi. Before she died, she gave Shen Yan a bronze bracelet engraved with the word "Lingshu". Shen Yan accidentally activated the "Lingshu Baojian" in his bracelet - a mysterious book that combines ancient medical techniques and formations. He needs to accumulate "benevolence points" by saving others to unlock content, which can not only improve medicinal materials, draw healing runes, but also deduce the source of poisons. The mother is actually a descendant of the reclusive medical clan "Sumen". Because she refused to hand over the treasure to the Shen family, she was hunted down by the heirs of the Shen family. Shen Yan's target of revenge is not only his cousin who embezzled Mo's mother's belongings, but also his father's family who are hypocritical and cruel.
