secret_(vocaloid)
Ryuuuu's secret song.
* NicoNico video (instrumentals)
* NicoNico video (PV version, Plagiarism by aRth)
"Secret" isn't the song title. It was merely meant the song itself is a secret or hidden song.
See Also
* List of Vocaloid Songs
External links
* Wikia & more info about the Plagiarism