That would be Rana, who is 0 years old officially. The next youngest vocals are Kaai Yuki at 9, Macne Petit at 10 and Otomachi Una at 11.
Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.