Work Out Night28,094 Views SingerNatsuki KarinSynthesizer VProducerYukino ItoProducerViews BreakdownYouTube16K ViewsNiconico12K ViewsDaily Views539/23639/24689/25429/26679/27459/28429/29VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB