Rosarium38,828 Views SingersKoharu Rikka (Unknown)Synthesizer VNatsuki KarinSynthesizer VProducerKazawaraProducerViews BreakdownNiconico30K ViewsYouTube9K ViewsDaily Views1211/01311/02511/03411/04611/0517511/061511/07VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB