Flat World1,245 Views SingerHatsune Miku V4X (Sweet)VocaloidProducerMaiku TachibanaProducerViews BreakdownYouTube1.1K ViewsNiconico193 ViewsDaily Views39/2339/2439/2549/26109/2789/2839/29VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB