That's right. Just as He Wei Dao had expected, Fang Ze had his own ideas: he believed what kind of cooperation was it without taking the lead! What's the big deal about having a demigod? He's not someone who has never outplayed a demigod before! He was going to lead the cooperation with the demigod as "a mortal"!
As for the second point...
The reason why Fang Ze accepted the Jia Family's invitation instead of going to the three aristocrats of the Directly Governed State or to the Jia Lan Family was because... he planned to fish.
He hadn't forgotten about the provocation from the Sima Family mentioned by Hei Yu.
Based on what he knew about the Sima Family, if he went to the three aristocrats of the Directly Governed State or the Jia Lan Family, the Sima Family wouldn't dare to make a sound. Only by going to the weakest Jia Family could he entice them to take the initiative...
And once they took the initiative, things would get interesting.