The description was really well achieved. It's calm and soothing but so powerful that it can be felt by just being in a place where they spend time. I'm thinking Susumu is a powerful little furry ball, given the way he was conceived, but I also think that other people less reiatsu perceiving would feel it in ShunUki's house. And mostly as a calm and soft environment, only changeable if either of them or their loved ones were in danger.

I too, like the idea that they decided to have children and it didn't just happen by accident or demand.

*is excited with this universe of ours*