Yakusoku Suru Saikai12,452 Views SingerFutaba MinatoCeVIO AIProducerAshuProducerViews BreakdownYouTube6.8K ViewsNiconico5.7K ViewsDaily Views4083/312974/012904/022504/032294/041774/052034/06VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB