Flat World1,249 Views SingerHatsune Miku V4X (Sweet)VocaloidProducerMaiku TachibanaProducerViews BreakdownYouTube1.1K ViewsNiconico193 ViewsDaily Views011/01011/02011/03011/04011/05011/06011/07VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB