Yunosuke (雄之助) is an established VOCALOID producer who primarily uses Hatsune Miku. In recent years he has made several songs using the CeVIO engine. Yunosuke composed one of KAFU's demo songs, 花となれ (Hana to Nare), as well as one of SEKAI's demo songs, ステラの座 (Stella no Za). He's also part of the musical unit, awairo, alongside vocalist WaMi.