二酸化炭素はCO216,590 Views SingersKotonoha Akane (VOICEROID)Other Voice SynthesizerKotonoha Aoi (VOICEROID)Other Voice SynthesizerProducersemicolonProducerViews BreakdownNiconico10K ViewsYouTube6.3K ViewsDaily Views124/29104/3025/01105/02245/0355/04125/05VideorefreshRefresh Song DataListenYouTubeNiconicoVocaDB
