Chu Jiangnan is actually Feng Yexuan's teacher!
So, that's the connection.
Then, did Chu Jiangnan teach Chu Wang his martial arts?
Feng Yexuan calls him "Shishu" because they are from the same sect, or simply because he is Chu Jiangnan's biological brother?
Among the Chu brothers, only Chu Jiangnan and Chu Wang were born to the Empress Dowager.
Chu Lingyang and Chu Danyu were born to other concubines.
It might not be true that Chu Wang is Feng Yexuan's senior; perhaps it's just a convenient way to address him.
Given this relationship, Chu Jiangnan and Chu Wang must be very close.
"Master, the toxins in your body have not been cleared, she should stay by your side."
The "she" Feng Yexuan is talking about is obviously Chu Qianli.
If Chu Qianli were to leave during that time, when the toxins in the Emperor's body change, Liujin would probably be at a loss.
"I know my own body well."
