Board Thread:Off-Topic Discussion/@comment-6433273-20160430010301/@comment-24889894-20160709174529

Angel Emfrbl wrote:

Una has an adult vocalist behind her, she is voice acted like Rin, Ryuto, Len, IA Rocks, etc.

Yeah, but they're all sold to us as vaguely teen-ish (or weird dinosaur froggy kid). Yuki's 9-ish, 11 isn't a lot more. But apparently people are willing to stretch their suspension of disbelief that far...