Board Thread:General Discussion/@comment-96.226.19.218-20150616045031/@comment-9114790-20150617202918

Im not sure about the backvocals, but Akira is the singer of the group and so far for all of the groups original songs they have been sung by only Akira, so it would make sense that he would get a vocaloid and not the rest of the group since they are not experienced singers.