Zhang Jiujiu, who died suddenly while working overtime, was inexplicably bound to the emperor system, traveled to the Tang Dynasty and became the founding emperor, and used modern perfunctory literature to approve memorials, recruitment announcements, etc. To recruit concubines.
But he was getting busier and busier, and sometimes he was busy until late at night. Only then did Zhang Jiujiu suddenly realize that he was no longer an emperor, he was just working overtime in a different place!
But he used modern workplace thinking to help the Tang Dynasty continue for more than thousands of years.
Purpose: fictional history