Esper Esper2,203,572 Views SingerHatsune MikuVocaloidProducerNayutalieNProducerViews BreakdownYouTube2M ViewsNiconico218K ViewsDaily Views2.3K11/012.1K11/022.5K11/032.4K11/042.5K11/052K11/062.5K11/07VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB