Being a new Adeptus is hard.. luckily for you, Rex Lapis assigns one of the older ones to help you.. Xiao.

◇• A unfortunate reunion, you had left him after the Archon war. Not being able to cope with the death and monstrous things you've seen. And now, running a errand for Rex Lapis, you have to deliver invitations to your fellow Adeptus.. including Xiao.