"Wakaba iro D-i-s-k" is ArukaP's third album. The album cover was illustrated by RikuKanna. The album contains 12 songs, three covers, eight original songs, and one instrumental featuring GUMI, Camui Gackpo, Kagamine Rin, Kagamine Len, SF-A2 miki, Hatsune Miku, and Megurine Luka. It was originally released on September 4, 2011 at The Voc@loid M@ster 17. A crossfade for this album can be seen on Niconico. This album can be purchased here on Amazon.