[Suteisi]

These kinds of shoes are also called "opened-toe shoes".

I bought a pair o white ones similar to Ayu's, but they are 2.5 inches(and not the same brand) instead of 4 which is likely what she's wearing.

They are really comfortable, but then again, I guess it depends on the brand. I think they are very classy and look great. Though they are just like any other high heel shoes, you can't walk around town for 3 hours with those on... Lol