KAFU, she's a cevio, not vocaloid, her voice provider is also a vtuber

KAFU

Thanks! Everyone was calling her a vocaloid lol—

At this point a lot of ppl say 'vocaloid' to talk about voice synths overall but there's a pretty thorough list here if you need it for future ref

https://vocalsynth.fandom.com/wiki/Category:Characters