Zhou Yu (played by Hong Yuyu) used a trick to get rid of Cao Jun's naval general Cai Mao and others, and asked Lu Su to test whether Zhuge Liang (played by Tang Guoqiang) knew about this trick. When Zhuge Liang saw Lu Su, he chatted with him about the way of being a general and the magical effect of "The Picture of Seventy-two Marquis". Lu Su was deeply surprised by Zhuge Liang's sudden mention of Zhou Yu's plan, and told Lu Su not to tell Zhou Yu that he knew the plan, for fear that Zhou Yu would harm him. Zhou Yu knew that Zhuge Liang was so predictable, so he came up with the problem of making 100,000 arrows in ten days to harm Zhuge Liang. Zhuge Liang promised that it would only take three days, and issued a military order. Lu Su knew that Zhuge Liang's disaster was coming, so he said he would secretly send him away. Zhuge Liang refused, and borrowed 20 boats from Lu Su, a few sergeants, prepared drums and music, each with more than a thousand straw people, and asked Lu Su not to tell Zhou Yu this time. Three days later at night, Zhuge Liang invited Lu Su to play the piano and drink wine in the boat. Taking advantage of the night and heavy fog, he ordered the fleet to sail to Cao Ying. Lu Su was puzzled and panicked. When the fleet approached Cao Ying, Zhuge Liang ordered the sergeant to light the lamps and shout, and the drums and music rang together. Cao Cao (played by Bao Guoan) mistook Zhou Yu for an attack, fearing that he would take advantage of the fog to ambush him, so he ordered his crossbowmen to retreat with random arrows. When the fog cleared at dawn, Cao Cao knew that he had been fooled after one hundred thousand arrows had been captured. When Zhuge Liang told the secret, Lu Su admired him extremely, and Zhou Yu felt ashamed. In order to break the Cao army, Zhuge Liang and Zhou Yu agreed and decided to attack with fire.