Chen Mo is a modern social animal who is familiar with the whole drama "Love in the Siheyuan". He travels to the Siheyuan in 1965 and becomes a young worker who has just been assigned to the logistics department of the steel rolling mill (his parents died young and lives alone). He has a calm personality, thoughtful thinking, and is good at layout. He holds the "plot script" in hand. His goal is to avoid the pitfalls of the original drama, accumulate wealth, stay away from the best, and live a good life.