It includes some rather "obscure" historical knowledge.
Nie Guangyi was just a bit tense and uneasy, and it wasn't that his IQ had failed him.
"Emperor Ku had a total of four wives. One of them, named Jiang Yuan, claimed that Houji was born from stepping into a giant's footprint, and she's regarded as the progenitor of the Zhou people. Another one named Jian Ci claimed that the progenitor of the Shang people, Qi, was born from swallowing a bird's egg. And then there's the even more remarkable Qing Du, who claimed that Yao was born from her union with a red dragon."
Nie Guangyi quickly tuned in.
Meng Xin Zhi naturally took over the conversation, delving deeper, "Hmm, Emperor Ku's last concubine was named Chang Yi, who bore Emperor Zhi and Chang'e."
Nie Guangyi analyzed, "This Emperor Zhi probably was his own flesh and blood, so he also got the throne from his dad."
Meng Xin Zhi countered, "Wasn't Emperor Zhi given the throne because he was the eldest son?"