Fu Xiao'an was a senior adviser to the Beiyang government. After the July 7 Incident, the Japanese army occupied Shanghai and implemented the policy of "using China to control China" in Shanghai, and Fu Xiao'an became the best candidate for the Japanese. In 1938, Fu Xiao'an became a traitor and served as the pseudo-mayor of Shanghai. As soon as Fu Xiao'an came to power, he removed all the blue sky and white sun flags in Shanghai, replaced them with the five-color flag of the new government, and suppressed the anti-Japanese soldiers and civilians. For a time, there were complaints, which annoyed Chiang Kai-shek.

After Fu Xiao'an became a traitor, Chiang Kai-shek hurriedly ordered Dai Toggy to get rid of him. Dai Kasa sent a telegram to Chen Gongshu, the mayor of the Shanghai Special Administrative Region, and after Chen Gongshu learned of this, he immediately made arrangements. Fu Xiao'an, well aware that his actions were unacceptable to the public, was extra careful, and lived in a place full of guards, and no one was allowed to come near. All the people who went out were bulletproof vehicles, followed by many guard cars in front of and behind, and 23 bodyguards were fully armed without any chance of getting started.
Chen Gongshu's many unsuccessful assassinations also made Fu Xiao'an extra cautious, and the assassination operation became more and more difficult. After thinking about it again and again, Chen Gongshu decided to start with the people around Fu Xiao'an. This person is Zhu Shengyuan, the cook next to Bo Xiao'an. Zhu Shengyuan, whose parents died when he was young, was taken in by Fu Xiao'an, and was loyal to Fu Xiao'an for more than ten years, and Fu Xiao'an also trusted him very much. Zhu Shengyuan had earlier worked as a coolie in a Japanese factory, suffered a lot of abuse, and hated the Japanese. Now, the master Fu Xiao'an has become a Japanese lackey, and Zhu Shengyuan has repeatedly advised Fu Xiao'an not to do things for the Japanese, but has been repeatedly rejected by the captive Xiao'an. Because of this, Zhu Shengyuan and Fu Xiao'an were quite unhappy, and also gave Chen Gongshu a once-in-a-lifetime opportunity.
The sullen Zhu Shengyuan came to the tavern to drink, and this tavern was the eyeliner of the military commander. As soon as Zhu Shengyuan entered the tavern, the boss took the initiative to talk and invited Zhu Shengyuan to drink, and the two of them saw each other as they were, and the conversation was very speculative. After sending Zhu Shengyuan away, the hotel owner conveyed this situation to Chen Gongshu, who was very surprised and thought that if Zhu Shengyuan could be brought together, the assassination would be successful. On the one hand, Chen Gongshu ordered the owner of the tavern to continue to communicate with Zhu Shengyuan, and on the other hand, he thought about how to plot against Zhu Shengyuan.
One day, Zhu Shengyuan came to the tavern again, and Zhu Shengyuan and the owner of the tavern came and went many times and became friends who talked about everything. The owner of the tavern was still warmly received, and when he was drinking happily, the boss said: "Brother Zhu is over forty years old and not yet married, I have a cousin who is not married, I and Brother Zhu are very close, I want to match you, how do you see?" After speaking, the boss called a woman, zhu Shengyuan saw that this woman was as beautiful as a flower, and his heart was suddenly fluttering, and he said yes. After that, the relationship with the tavern owner was better
Chen Gongshu saw that the time was ripe, and when Zhu Shengyuan came to the tavern again, he was directly invited into the back hall. Chen Gongshu said to him: "I am the governor of the Shanghai Special Administrative Region of the Military Command, and I would like to ask Mr. Zhu for help. Zhu Shengyuan was shocked at first, and after calming down, he asked: What happened? Chen Gongshu said, "I know that Mr. Zhu is a patriot and can't get used to Fu Xiao'an's evil deeds, so I would like to ask Mr. Zhu to get rid of him!" ”
Zhu Shengyuan did not agree at first, after all, Fu Xiao'an had been kind to him for more than ten years. Chen Gongshu also said, "If you stay by his side all the time, you will not be able to escape the insult of traitor." If you can get rid of him, not only can you leave a good name, but also get 50,000 oceans, the military command will also keep you safe, and that beautiful woman is also yours! After a long ideological struggle, Zhu Shengyuan promised to get rid of Fu Xiao'an. On October 10, 1940, the Wang puppet Nationalist government celebrated the first Double Tenth Festival. After the revelry, Fu Xiao'an returned to the French Concession at 3 a.m. Zhu Shengyuan first waited for him to sleep, and after Fu Xiao'an was asleep, Zhu Shengyuan took a kitchen knife and walked to Fu Xiao'an's bedside and slashed Fu Xiao'an's head and throat three times in a row. Fu Xiao'an was killed on the spot after three knives, at the age of 68.
Zhu Shengyuan killed Fu Xiao'an and returned to his room to change into blood clothes. After dawn, as usual, he carried a vegetable basket and rode his bike away through the back door. Later, under the arrangement of the military command, he first hid in the French Concession, and later went to Chongqing, opened a handmade cigarette factory, and spent the rest of his life. Fu Xiao'an's death dealt a great blow to the Wang puppet regime, and on the day of Fu Xiao'an's burial, the guards were tight, and there was a power grid along the way, three steps and one post. Although Zhu Shengyuan killed his benefactor, which was contrary to human feelings, he killed the traitor, and for others, it was another piece of merit.