Graduated from Tilangiao, the Empress Wants Me as Prime Minister?

Shen Lang, a top accountant from Tilangiao, transmigrates into a xianxia world to balance the books for cultivators. His wife turns out to be the Empress of Daqian. He uses his accounting skills to solve absurd problems like missing elixirs, dead prisoners, and debts, all while avoiding teaching the court proper ethics.