Board Thread:Questions and Answers/@comment-69.145.30.122-20161230002538/@comment-43284104-20190806194440

In my understanding Rachel is an irregular in the sense she was not chosen by Headon, but she's not one of those "who opened the door themself". So she's not bound by the same rule as tower's residents but don't have the power of irregulars like Baam, Urek...

She's more a stowaway than a true irregular.