I Wish I Had a Shatterproof Heart5,320,569 Views SingersSF-A2 Codename mikiVocaloidIAVocaloidProducerIshifuroProducerViews BreakdownYouTube4.7M ViewsNiconico593K ViewsDaily Views1K8/201.3K8/211.6K8/221.5K8/231.5K8/241K8/251.2K8/26VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB