Work Out Night32,286 Views SingerNatsuki KarinSynthesizer VProducerYukino ItoProducerViews BreakdownYouTube19K ViewsNiconico13K ViewsDaily Views5312/175212/18612/191612/2016312/215312/226212/23VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB