アイの戦争11,346 Views SingerNatsuki KarinSynthesizer VProducerChikarutofProducerViews BreakdownNiconico7.8K ViewsYouTube3.6K ViewsDaily Views04/1904/2004/2104/2204/2304/2411K4/25VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB