"As far as I can tell, we're here to engage in...activities to aid in the rebuilding of this place. Huaisang has done enough to regain a version of his home where we've mostly taken up residence." For the time being. Xichen isn't quite meeting Wangji's eyes though.

"...May I ask your age, Wangji?" Because he's really not sure how else to bring up this issue, but it would makes sense his brother being recovered could mean he falls more in line with the others they know.