Are you sure? To me that looks more like the third girl, not the second one.
It doesn't help that the movie only lists the supposed first name of the women (none of them is listed as Kana, unhelpfully enough). The woman asked about is listed as Yumi (ゆみ).
None of the pictures of Kana I saw showed the birthmark this woman has on her chin. I know it's not proof, but still.