Talk:Haruno Sora/@comment-30992005-20180726015935/@comment-53539-20190712080336

It may have not been possible because of problems we don't yet know of. The Nana and Petit vocals came into V4 rather late and were transferred to Ah Software.

It may be possible that the provider of Sora was already lined up for Vocaloid before this even happened, or Nana's team simply couldn't produce the money to do the job and thus Ah Software agreed to give the provider a chance under a new vocaloid character. If the first chance happened, it could be after they begun the normal voicebank they found out about her doing two characters previously and expanded upon it.

Or alternatively, there is the prospect they used her because of XSY was a thing in V4 and no one knew that it would be retired in V5. In the two 3rd party releases, both had vocals that contained 2 voicebanks. To me, this may be because they were originally going to be V4s and were redone for V5, which happens a lot with late engine voicebanks.