Fifty-eight-year-old miserly landlord Zhou Shuzhuo was extremely meticulous down to the last penny, earning the nickname "Zhou the Penny-Pincher." Suddenly stricken with consumption, he was given only twelve days left to live. On the brink of death, he activated the mysterious "Hidden Virtue Life-Extension Ledger," where performing good deeds and accumulating virtue could extend his life and rejuvenate him, while deliberately seeking merit would halve his virtue. Clinging to his abacus to maintain his stingy nature, he inadvertently exempted Lao Hutou from rent, harvesting massive amounts of virtue; subsequently bailed out Su Mei'er and Wen Yu; secretly assisted the injured Ling Shuang; relieved the destitute Lin Yueyao; and outwitted his greedy paternal uncle who plotted to seize the family estate. As good deeds gradually accumulated, his body grew younger day by day, which also drew the tracking turmoil of Ling Shuang's enemies.