Hey is not an oc is a fanmade that is based on a game poster ... that would possibly be a cannon. So it's not to insult me, in addition the fandom put bendy skirt
Well you are right well she is based on Hatsune Miku and produced by Deino. Its name is a play on words between "Kara" (骸) that comes from "Skeleton", "Ne" (音) meaning "Sound" and "CA", which is the chemical symbol of Calcium.