This was the outfit that Kuroneko wore in the Ore no imouto light novel vol. 8. If you watched the anime, you’ll remember that Kuroneko always wear her black dress which was the name Kuroneko (black cat) derived from. This was called Kamineko (god cat) because of this white dress.
This figma looks great but too bad its Dengekiya exclusive. Preorder starts August 10 so start contacting your proxies now. ^^” She’s priced at 3200 yen and scheduled for February 2012 release.