In the Spring and Autumn Period in China history, in order to kill the emperor of Wu, Wu Gongzi Guang took the use of the characteristics of the emperor that he liked eating fish. At the banquet, he prepared the expanded fish that had been fried in advance, so that it can hide a dagger. After success, he became the next emperor. When he once again asked the chef to cook the dish, the attendant said that the fish was like a fluffy squirrel. and agreed, so the squirrel-shaped Mandarin fish was called.