unbelieve4,577,974 Views SingerKAFUCeVIO AIProducerMizuno AtsuProducerViews BreakdownYouTube3.7M ViewsYouTube511K ViewsNiconico363K ViewsDaily Views1.8K12/172.9K12/1894412/191.9K12/202.1K12/213.6K12/222.2K12/23VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB