golden_number_(vocaloid)
A song from the VOCALOID producer iyowa featuring v flower with Hatsune Miku providing the chorus.
External Links
* YouTube: 黄金数 / いよわ feat. 初音ミク・flower（Golden Number / Iyowa feat.Hatsune Miku・flower）* NicoNico: 黄金数 / いよわ feat. 初音ミク・flower