Just want to speculate on Kuroyukihime name based on current clues:
1. Her name similar with her nickname Kuroyuki Hime
2. Sky raker call Her Sa-chan (with assumption not nickname and she call Kuroyuki Hime by first name)
Her name would be
Sa???? ??????
Inserting Her nickname Kuroyuki Hime
Sakuro Yuki Hime
well I think Sakuro is not to common name in Japan ecxept for : Zakuro or Sakura. Yuki for family name is bit uncommon, so I would change it to Yuuki.
so Her name would be Sakura Yuuki.
Lame isn't it
. But that's what i got in my mind . . . .