Opera! Space Opera!2,448,846 Views SingersKagamine LenVocaloidTenma TsukasaProject SEKAIOtori EmuProject SEKAIKusanagi NeneProject SEKAIKamishiro RuiProject SEKAIProducerNayutalieNProducerViews BreakdownYouTube2.3M ViewsNiconico137K ViewsDaily Views6.4K11/016.3K11/027.1K11/036.6K11/046.8K11/056.3K11/066.2K11/07VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB