Good-bye, Katharsister27,236 Views SingerIAVocaloidProducerNatsuyama YotsugiProducerViews BreakdownYouTube23K ViewsNiconico4.6K ViewsDaily Views7611/167711/177711/186111/196611/206511/215511/22VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB