"Second Uncle, you forgot, Eighth Brother is the Crown Prince's person, so it's not surprising for Eighth Brother to use this identity to get close to Kong Yuan." Zhao Yao speculated that the reason Kong Yuan allied with the Eighth Prince was likely to avenge his sister. As for why not directly join the Crown Prince, it might be because he looked down on the Crown Prince. "Kong Yuan should have allied with Eighth Brother on his own, without the knowledge of Kong Taichang." Judging by Kong Taichang's nature and conduct, he would never agree with Kong Yuan allying with Eighth Brother.
"The Eighth Prince is too... A mere word like 'brilliant' isn't enough to describe him." Even managing to recruit the Kong Family, the Eighth Prince is truly, truly, truly... remarkable.
