Rosarium38,894 Views SingersKoharu Rikka (Unknown)Synthesizer VNatsuki KarinSynthesizer VProducerKazawaraProducerViews BreakdownNiconico30K ViewsYouTube9K ViewsDaily Views411/16511/17411/18011/19411/20111/21411/22VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB