Di Renjie's version of Journey to the West.
During a long journey to the border, after going through eighty-one difficulties, what kind of truth are we looking for?
Can the old prime minister in his twilight years complete the most difficult journey in his life and solve the most complicated unsolved case in his life?
Because this time, what Di Renjie wants to take is not an ordinary road, but the road of his life, and what he wants to solve is not an ordinary case, but the case of his life.
When his road came to an end and everything was revealed, he found the answer to his life.
Intention: to have a clear conscience.