"Alas! His brother-in-law often corresponds with him, and they have a good relationship. Originally, the brother-in-law's mistake wasn't an unforgivable crime, so there was no need to implicate Scholar Fang. It's just a pity that the business under Scholar Fang's wife's dowry shop is entangled with Mrs. Huang Yu."
At this point, Zhang Hai's words made Gu Chengyu understand.
The two families have business dealings, but it's certainly not legitimate business, or at least the means are improper.
In any case, Fang Huai is definitely implicated by his wife.
Perhaps Fang Huai was aware, then it's not an injustice. Let's say he was completely unaware; that's certainly impossible.
Fang Huai comes from a family engaged in farming and studying, relatively well-off but far from luxury; it's quite likely he was tempted by profits.
