What did second sister Xu Fengnian ask Jiang Ni to write?

Maybe he is teaching Jiang Ni instead of Xu Fengnian. As we all know, Xu is Xu Fengnian's second sister. Although she is very strict with Xu Fengnian, we have to admit that Xu Xiong Wei loves her brother Xu Fengnian very much. She knew very well that Xu Fengnian liked Ginger Paste very much, so even if Ginger Paste did something excessive, Xu Fengnian wouldn't punish him ... Maybe he wanted Ginger Paste to know his brother's good. As we all know, although Xu Fengnian is very good at ginger paste, ginger paste has not been well received by Xu Fengnian. Xu Fengnian, on the other hand, didn't want to be a villain and punish Jiang Ni. Then, as Xu Fengnian's second sister, Xu Xiongwei will be the villain himself. Even if Jiang Ni can't learn from His Royal Highness Prince Xu Fengnian, ... Xu punishes Jiang Ni, but it is actually her sister-in-law who teaches her rules. As we all know, Princess Wu Su of Beiliang died early. Jiang Ni is Wu Su's daughter-in-law, but there is no mother-in-law to discipline Jiang Ni.