裏世界は世界の裏5,418 Views SingersKotonoha Akane (A.I.VOICE)Other Voice SynthesizerKotonoha Aoi (A.I.VOICE)Other Voice SynthesizerProducersemicolonProducerViews BreakdownNiconico5.4K ViewsDaily Views1011/16511/17811/18511/19711/20911/21611/22refreshRefresh Song DataListenNiconicoVocaDB