What should I do?48,474 Views SingerNatsuki KarinSynthesizer VProducerChikarutofProducerViews BreakdownNiconico20K ViewsYouTube18K ViewsYouTube11K ViewsDaily Views04/1904/2004/2104/2204/2304/2448K4/25VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB
