DISCLAIMER: I do not claim ownership over this story. I only MTLed and polished it.
Original novel: https://www.t7b1.com/t7b1book801/
A financial tycoon, exhausted by the scheming and life-or-death struggles of the modern world, returns to ancient times and finds himself in the body of the most insignificant son-in-law in a merchant family. What begins as a story of leisure soon turns to matters of state and country, things he once wished to avoid but can no longer escape.
'Someone who once stood at the pinnacle of the pyramid, treading the path paved with countless envy and admiration, surrounded by throngs of people, could not escape the lonely rest beneath the tombstone.'