Lifespan can be measured, stored, and transferred - in this world where spiritual energy is slowly drying up, lifespan is the hardest currency. The Shen family has a longevity book: clan members deposit longevity yuan, and the family withdraws it to live. If you save one hundred, you will get seventy, and the remaining thirty will be eaten by the book. No one asks where the thirty went - and those who do will not live long. Shen Liunian is the most marginalized child of the family. When he was sixteen years old, someone saved ten years of life for him, but that person died of old age on the spot in front of him. It was also that year that he became a bookkeeper: his cultivation would always stop at practicing Qi, but he could live for hundreds of years. He is the only person who can hear the memory of the survivor - he has served as a witness for every longevity sum entered into the book. So he knew that every clan member who wanted to take his life was lying. The old bookkeeper died suddenly, and the fourth room forced him to open the book. The first time he presided over the longevity book, he was forced to take away fifty years of a clan member and watch that person wither into white bones from his prime. That night, he secretly changed the amount in the book to a smaller amount. This line of text will be translated three times in the next three hundred years.