Chen Pingping had learned the Qing Emperor's true colors when he had completed a mission at the cost of losing his legs. The Qing Emperor was an ungrateful and sinister villain. He had deliberately arranged Ye Qingmei's death and let Chen Pingping fail and be captured. When Chen Pingping laid his cards on the table with the Qing Emperor in his royal study, he exposed the fact that the Qing Emperor had betrayed Ye Qingmei. Thus, Chen Pingping only knew that the Qing Emperor was the murderer after completing his mission.

Chen Pingping had learned that the Qing Emperor was the murderer when he had completed a mission at the cost of losing his legs. The Qing Emperor had deliberately arranged Ye Qingmei's death and let Chen Pingping fail and be captured. When Chen Pingping laid his cards on the table with the Qing Emperor in the Emperor's royal study, he exposed the fact that the Qing Emperor had betrayed Ye Qingmei. As a result, Chen Pingping only found out that the Qing Emperor was the murderer after completing his mission.
Chen Pingping had learned that the Qing Emperor was the murderer when he had completed a mission at the cost of losing his legs. The Qing Emperor had deliberately arranged Ye Qingmei's death and let Chen Pingping fail and be captured. When Chen Pingping laid his cards on the table with the Qing Emperor in the Emperor's royal study, he exposed the fact that the Qing Emperor had betrayed Ye Qingmei. As a result, Chen Pingping only found out that the Qing Emperor was the murderer after completing his mission.
In the novel Joy of Life, Chen Pingping knew that the Qing Emperor was the murderer through the letter Ye Qingmei left Fan Xian. In Ye Qingmei's letter to Fan Xian, she mentioned the emotional entanglement between her and the Qing Emperor, as well as her disappointment and anger toward the Qing Emperor. The letter also mentioned the truth behind the Qing Emperor killing her and his unscrupulous actions to consolidate his throne. After Chen Pingping learned the truth, he was angry and disappointed with the Qing Emperor's actions. He decided to avenge Ye Qingmei. In the end, he joined forces with Fan Xian and the others to plan the assassination of the Qing Emperor and successfully avenged Ye Qingmei.
Chen Pingping had learned that the Qing Emperor was the murderer when he had completed a mission at the cost of losing his legs. The Qing Emperor had deliberately arranged Ye Qingmei's death and let Chen Pingping fail and be captured. When Chen Pingping laid his cards on the table with the Qing Emperor in the Emperor's royal study, he exposed the fact that the Qing Emperor had betrayed Ye Qingmei. As a result, Chen Pingping only found out that the Qing Emperor was the murderer after completing his mission.
Chen Pingping had learned that the Qing Emperor was the murderer when he had completed a mission at the cost of losing his legs. The Qing Emperor had deliberately arranged Ye Qingmei's death and let Chen Pingping fail and be captured. When Chen Pingping laid his cards on the table with the Qing Emperor in his royal study, he exposed the fact that the Qing Emperor had betrayed Ye Qingmei. As a result, Chen Pingping only found out that the Qing Emperor was the murderer after completing his mission.
When Chen Pingping had completed a mission at the cost of losing his legs, he had learned that the Qing Emperor was the murderer. The Qing Emperor had deliberately arranged Ye Qingmei's death and let Chen Pingping fail and be captured. When Chen Pingping laid his cards on the table with the Qing Emperor in his royal study, he exposed the fact that the Qing Emperor had betrayed Ye Qingmei. As a result, Chen Pingping only found out that the Qing Emperor was the murderer after completing his mission.
When Chen Pingping had completed a mission at the cost of losing his legs, he had learned that the Qing Emperor was the murderer. The Qing Emperor had deliberately arranged Ye Qingmei's death and let Chen Pingping fail and be captured. When Chen Pingping laid his cards on the table with the Qing Emperor in his royal study, he exposed the fact that the Qing Emperor had betrayed Ye Qingmei. As a result, Chen Pingping only found out that the Qing Emperor was the murderer after completing his mission.
When Chen Pingping had completed a mission at the cost of losing his legs, he had learned that the Qing Emperor was the murderer.
When Chen Pingping had completed a mission at the cost of losing his legs, he had learned that the Qing Emperor was the murderer. The Qing Emperor had deliberately arranged Ye Qingmei's death and let Chen Pingping fail and be captured. When Chen Pingping laid his cards on the table with the Qing Emperor in his royal study, he exposed the fact that the Qing Emperor had betrayed Ye Qingmei. As a result, Chen Pingping only found out that the Qing Emperor was the murderer after completing his mission.
When Chen Pingping had completed a mission at the cost of losing his legs, he had learned that the Qing Emperor was the murderer. The Qing Emperor had deliberately arranged Ye Qingmei's death and let Chen Pingping fail and be captured. When Chen Pingping laid his cards on the table with the Qing Emperor in his royal study, he exposed the fact that the Qing Emperor had betrayed Ye Qingmei. As a result, Chen Pingping only found out that the Qing Emperor was the murderer after completing his mission.
When Chen Pingping had completed a mission at the cost of losing his legs, he had learned that the Qing Emperor was the murderer. The Qing Emperor had deliberately arranged Ye Qingmei's death and let Chen Pingping fail and be captured. When Chen Pingping laid his cards on the table with the Qing Emperor in his royal study, he exposed the fact that the Qing Emperor had betrayed Ye Qingmei. As a result, Chen Pingping only found out that the Qing Emperor was the murderer after completing his mission.