I Want to Be Your Heart2,834 Views SingersMujikaUTAUAdachi ReiUTAUProducerakimaru_0127Cover ArtistViews BreakdownNiconico2.8K ViewsDaily Views19/24-2.8K9/252.8K9/2609/2729/2809/2919/30refreshRefresh Song DataListenNiconicoVocaDB