Comments of chapter undefined of You Will Call Me Sir

The more information we get the less i feel like i know. What exactly is kate/stella? What is Ciel? Are they just people with paranomal gifts or are they more?? Who is the organization after Kate? I feel like they “made” her but idk..Ciel said he’d change her last name but then said he could only be there to help her through and he would be left broken or something like that