Chen Gong is Zhuge Liang's man, and his purpose, like Feng Ying's, is to help Zhuge Liang, the prime minister, and eradicate the stumbling block of Li Yan.
Guo Huai clearly knew that Chen Gong was a white emperor. If Chen Gong hadn't been rebelled by Guo Huai, his first concentrated information about the battle of Shujieting was intercepted by the first generation of Candle dragon Gaotangbing, and Guo Huai might get rid of Chen Gong as soon as he knew it.
Chen Gong's character.
Chen Gong was an apprentice of ancient general Li Yan. Without Li Yan's careful teaching, there would be no Chen Gong today.
For Cao Wei, Chen Gong was the core of Qingping Plan, and stealing crossbows was just a cover. The real purpose is to let Chen Gong smoothly enter the top of Cao, so that he can know himself and himself.
For Shu Han, Chen Gong is an impossible task, which is the key to hit Cao Wei hard. As long as Chen Gong can successfully win the trust of Guo Huai, the mighty general of Cao Wei, he can stop hundreds of thousands and deal a fatal blow to Cao Wei.
For Chen Gong himself, there are three meanings of existence, one is to revive the Han Dynasty, the other is to find out the truth about the death of his biological father, and the third is to preserve Xun Xu.