*dry* Ah, you mean the one who got a cameo in the single fluffiest, least angst-ridden manga Clamp ever wrote (which nevertheless managed to kill off the actual mother beforehand) and then got shipped out of the plot express? That one? *snorts* Don't even try to get them out of this. A minor character slips by every now and then, yeah, but the pattern is smashingly obvious and consistent.

Of course, she was also in a (physically) cross-generational relationship, and that generally does score survival points in Clamp.