Opera! Space Opera!3,240,358 Views SingersKagamine LenVocaloidTenma TsukasaProject SEKAIOtori EmuProject SEKAIKusanagi NeneProject SEKAIKamishiro RuiProject SEKAIProducerNayutalieNProducerViews BreakdownYouTube3M ViewsNiconico214K ViewsDaily Views4K3/313.9K4/013.9K4/024.3K4/034.3K4/044.2K4/054.2K4/06VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB