Hello~
That woman's name is "Reon Kadena", and according to the profile on her website (http://www.kadenareon.net/profile/index.html) she was born in Osaka. Just to clear that up. ^^
You should google for a few more recent pictures, though, as the one in her profile seems to be quite old.
Welcome to japanese "idol movies". :D But, off-topicly. I'd rather watch her doing laundry for an hour than watching what's shown on TV nowadays.
Anyway. I'll try to get my hands on two of her latest idol movies, maybe the scene is in there. Just for the case that Zurreco may not find it, of course. Not because I think she's absolutely gorgeous and my favorite Japanese Idol. Nevah.