"That’s right. You have to keep the fact that I'm a witch a secret, however. Due to the witch burnings, wixen separated from non-magicals a few centuries back and now live in isolated communities in secret. The secrecy is maintained by the wizarding special police who fortunately only remove people's memories as opposed to...well, silencing the witnesses. Technically, we're only supposed to be introduced to magic when I'm 11 and I get invited to a magical boarding school to start my magical education and integration into their world, but I'm a natural mind-reader and mages are actually pants at behaving normally in magical society so I discovered this early."