In the spring of 1972, Chu Bahong quietly threw an old envelope into the wind on the train going to Beidahuang to jump in line. Zhang Hongcheng, who was far away in time and space in 2024, happened to get an old envelope. When Zhang Hongcheng's soul awakened from a young body in 1972. He decisively beat up his impure girlfriend's family; sent his friend who stabbed him in the back to a labor camp; he put aside ten years of resentment and reconciled with his stepmother; he left his job in the city to his sister, and came to Beidahuang with that magical old envelope.
