The time traveler Cheng Yu came to the Qing Dynasty in the 35th year of Qianlong's reign and became the son of Cheng Wenyuan, the head of the internal affairs treasury. Faced with the plight of his family's decline and heavy debts, he relied on modern business knowledge and historical insights to start from a box of "Qianlong Ten Years Tribute Tea". After going through major events such as the internal affairs office struggle, entrepreneurship competition, Southern Patrol case, overthrowing Heshen, rectifying the imperial village, founding a new school, promoting machinery, setting up customs, banning smoking in Humen, and being envoy to the United Kingdom, he eventually became an important minister who influenced the national destiny of the Qing Dynasty and promoted a series of modernization reforms.
