
You mean Josh? In none.
It takes years for Chase to talk to his parents again.
They all live far away from each other, I think only Chase and Grayson live in California, but not in the same area.
The family is not the closest to be frankly, if they have contact it's most of the time via phone often through secretaries.
You only see Grayson around Chase because he cares about Chase, in his own way. Even though Chase hates it. But you need to know more about Grayson to understand it.
And Nathaniel has to clean up his siblings messes.
I even think that Dane will meet all family members before Josh.lol

Koi loves his children, but their relationship is totally messd up, because he couldn't take care of his children himself at some point. The reason is that he almost died because of them, and Ashley was not willing to take any risk of that happening again.
And Ashley is emotionless.
Chase had massive problems with his family because he manifested later than his siblings.
Chase was a sensitive and emotional child, but his siblings (aside form Bliss) never went through that phase.
So they didn't understand or misunderstood Chase, or didn't know how to react to him.
So he felt like an ousider. And was so fed up with his family that he didn't want anything to do with them. And Grayson's way if helping did the rest.
So you understand it, for example Grayson spoiler
.
.
.
.
.
.
.
.
.
.
.
He was born manifested. Aside from releasing more pheromones and being inhumanly strong, you often think he is insane.
If you go by real life, it looks like he has Alexithymia, and shows some traits of the authism spectrum.
His way of helping often turns out as strange or harmful, and he isn't even aware of it.
Can someone tell me in which chapter does they meet chase whole family