If Su Zhen really interacted frequently with the hunters on Grand Cloud Mountain as Granny Liu had said, then it wouldn't be surprising for him to be familiar with the Zhang family.
Jiang Chuan was indeed keen on interacting with him. Given Su Zhen's knowledge of the Zhang family, he must be aware of their current circumstances. Jiang Chuan wanted to ask about his daughter Jiang Qing, who had been married into the Zhang family for two years without sending any news home.
Jiang Qing was the most filial daughter in the family. Even if she had moved to the distant Grand Cloud Mountain, she should've found a way to maintain contact. She never had the chance to go to school when she was younger, so she was illiterate. Jiang Chuan could understand that she wouldn't be able to write letters home, but her not visiting the village for two years was indeed odd.
