Flat World1,249 Views SingerHatsune Miku V4X (Sweet)VocaloidProducerMaiku TachibanaProducerViews BreakdownYouTube1.1K ViewsNiconico193 ViewsDaily Views011/16011/17011/18011/19011/20011/21011/22VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB