I Wish I Had a Shatterproof Heart4,989,694 Views SingersSF-A2 Codename mikiVocaloidIAVocaloidProducerIshifuroProducerViews BreakdownYouTube4.4M ViewsNiconico566K ViewsDaily Views9812/1781812/181.5K12/1914712/2090712/2199612/221.1K12/23VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB