Worst Regret1,157,949 Views Singersv4 flowerVocaloidV4 GUMI (Power)VocaloidProduceryoumanProducerViews BreakdownYouTube698K ViewsNiconico460K ViewsDaily Views1.5K3/311.3K4/011.3K4/021.4K4/031.3K4/041.4K4/051.2K4/06VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB