Mr. Gepin

A modern man's soul traveled to a strange dynasty and became the eldest son of the prefect's family. Before he had time to experience what it was like to be a young master, he was taken into prison and became a prisoner. Fortunately, with the incredible 'deduction' system, he was able to resolve the crisis step by step, saving himself and his loved ones at the same time. With this unbelievable ability, he helped his father become a superior prime minister, and also achieved the free and easy life of an ancient young official. (Ps: Non-examination party, brainless white article.)