On November 11, the 49th year of Emperor Kangxi's reign, Emperor Kangxi led the Crown Prince and Prince Yong to hunt in Mulan Paddock. Prince Yong met Li Jiashi by chance, and later Li Jiashi gave birth to Prince Yong's fourth son Hongli in Mulan Paddock. In the 59th year of Emperor Kangxi's reign, Emperor Kangxi was in danger while hunting, and was rescued by the young Hongli. Hongli cleverly wrote couplets and won Emperor Kangxi's favor. After Hongli succeeded to the throne, he changed the reign to Qianlong. During Qianlong's reign, the Siku Quanshu Library was established and the Siku Quanshu was compiled. Ji Xiaolan, the editor-in-chief of the Siku Quanshu, was working in the study because it was hot and he was not dressed. He had to hide under the table, but was still called out by Qianlong. Fortunately, he cleverly explained the "old man" and Qianlong allowed him to work without clothes. Liu Yong met Qianlong and won the title of "Luo Gou", which could increase his salary by 20,000 taels a year. Qianlong was unwilling and secretly ordered people to ask difficult questions, which were solved by Liu Yong one by one. Finally, Qianlong asked Liu Yong to jump into the ice cave. After receiving the order, Liu Yong stood beside the ice cave for a long time. Later, he met Qianlong and said that he had met Qu Yuan. He asked Qianlong whether he was a tyrant who forced his ministers to death. Qianlong had no choice but to let him go. In the 16th year of Qianlong's reign, Qianlong was ordered by the Empress Dowager to go on a southern tour to Yangzhou. In order to understand the people's sentiments, Qianlong disguised himself as a businessman and left his guards alone to visit incognito. In the most famous teahouse in Yangzhou, Yileyuan, Qianlong encountered a teahouse that only sold water. Under the guidance of the talkative waiter, he learned that the teahouses that drank meat tea in Yangzhou sold all kinds of snacks and drinks, but no tea. Qianlong had to go to the teahouse opposite to buy tea. The waiter introduced Qianlong with a passionate and emotional voice that "people in Yangzhou are old, and boats in Guazhou are small". Because the people in Yangzhou are polite, they call him old man, and in Guangzhou, people are called "old man", giving Qianlong an interesting lesson in folk customs. While enjoying the food, Qianlong occasionally saw a young man holding the Spring and Autumn Annals and guarding the vegetable stall downstairs in the teahouse. He learned from the waiter that the young man's name was Zhou Riqing. His uncle was a Hanlin in the Hanlin Academy, but he was an honest official. After retirement, he was poor and sick. He only told Zhou Riqing to sell vegetables every day to make a living. As he was talking, he met two officials who came to ask for donations, but Zhou Riqing couldn't pay. From the waiter's mouth, he learned that it was Ye Hongyun who falsely passed on the imperial edict to set up a neighborhood donation bureau in Yangzhou, and all businessmen had to donate money. As he was talking, the two officials downstairs began to beat Zhou Riqing because they couldn't get the money. Zhou Riqing was forced to protect himself, and Qianlong was besieged by many officials who were drinking tea in the teahouse because he cheered Zhou Riqing. When the two defeated many officials and were going to drink tea, they found that the streets that were noisy just now were now empty, and the doors and windows of all merchants and ordinary people were closed for self-protection. Helplessly, Qianlong had to sit in the middle of the street to rest. At this time, Ye Hongyun led the officials to arrest Qianlong, but was intimidated by Qianlong's momentum. Later, E Rong'an, who came to greet him, confirmed Qianlong's identity. The waiter had cursed Qianlong in the previous conversation with Qianlong. When he learned that the polite person just now was Qianlong, he had no choice but to hang himself. At the critical moment, Qianlong ordered someone to rescue him. After that, Zhou Riqing was promoted to lead Qianlong's horse. The waiter was also appointed as an official by Qianlong. Corrupt officials like Ye Hongyun were punished.