If you don't know what it is, just think of it as the bad guys. It's easier that way.

[That's not an explanation, but Grail War mechanics are already confusing. An explanation from her will only add to the confusion. And her explanation's not exactly right because technically Jeanne's group would be the good guys, the other group would be the bad guys and Mordred and her Master are kind of in it for personal gain at this point. But yeah that just confuses the whole thing, so she's not going over that to a stranger.]

Just take my word for it that it's not that, all right? Because I'd know.

[There. All handled. Or at least she thinks so.]