ウルルンTV

はじめてのアカペラ練習に苦戦するウタ。そんな中、部長アイリが見つけた新部員候補が話題に。アカペラ特有のパート「ボイスパーカッション」担当として迎え入れるために、部員総出で勧誘に向かうが――

Uta struggles with her first a cappella practice. Meanwhile, a new member candidate found by club president Airi becomes a hot topic. All the club members go out to recruit her to take on the role of "voice percussion," a unique part of a cappella.

嬉歌加入了阿卡贝拉社。跟二年级成员的社长爱莉和她的儿时玩伴副社长玲音，一年级成员的结一起练习阿卡贝拉。然而，在练习途中发现，虽然歌声和乐谱所表示的内容一样，但却无法顺利融合，大家为此陷入烦恼。