Yu Defu handed a bag of poison to Qing'er and asked Qing'er to poison Rong'er to death.Li Qi concealed the fact that she was pulling a rickshaw, and Rong'er realized that Li Qi was hiding something from her.After Qing'er received the poison, she became a little absent-minded in doing things. Qing'er put poison in the porridge and recalled the past with Rong'er. While talking, Qing'er vomited blood and fell to the ground.Before she died, Qing'er expressed her apologies to Rong'er and Li Qi. She had been living a very scared and unfamiliar life these days, so she chose to end it on her own.Qing'er passed away, Rong'er was very sad.After Wu Tian recovered from his injury, he was determined to take revenge on Yu Defu.Li Qi came to Yanchi Tower to look for clues about Yu Defu and met Wang Gonggong. Wang Gonggong told Sun Yiren and Yu Defu's activities and informed Li Qi of Yu Defu's residence.Li Qi came here and found that the door was closed. He decided to continue investigating Yu Defu. He told Lu Qiutong and others the news.Concubine Ronghui persuaded Rong'er to leave the eldest princess's mansion and go home to reunite with her family.