Either that or a die hard fan who spent all of their future retirement money on plastic surgery to look like their idol.
Seriously, I don't think we'll ever know if she's Ayu mom or not unless someone actually confirms it. It is possible, but there is a hint of doubt in me. She looks pretty young (plastic surgery, Ayu's money, yeah, yeah, yeah...). And would she really make an appearance like that? I guess we'll never know, but still...