Is this a fake nendoroid?

It doesn't look like it but if this is the picture used to advertise it on Ebay, you may have ended up with something else. Do you have any shots of the figure itself?

Judging by the boxes in the back, most likely. :(

If it came from Hong Kong...........then it's probably a fake

take it out of the box and compare it to the one on the GSC site thats the best way, their products are usually very accurate to their display image, so if you see significant difference in paint or quality then its a fake.

Yes dude that figure is a fake one beacause there's no seal in the box I know because when I was novice I bought a fake Konata.

yeah, i think that is fake..genuine ones have that kind of a plastic sheet wrapped around the Nendoroid itself.

Judging from the shiny hair in that pic you can tell it is a fake.

Her hair is the first clue... Looks like a fake IMO, but if you have the nendo pics out of box everyone can inspect it better. just by looking at it in box is difficult.