Also, you can buy her directly on character planet shop (though I can't tell personally how international ship works atm )
Her price is 234,000 wons for the bundle VOCALOID4 editor + her voicebank (around 195 € / $ 205 / 165 £ ) ; or simply her voicebank for the price of 124,000 wons (around 103 € / $ 109 / 87 £ )
(For those who are Japanese and would like to get her, the price is 23,472 yens for bundle and 12,240 yens for the VB alone with additional fees to pay for said ship from Korea to another country to add to this of course)