is a member of supercell and was one of the first Vocaloid producers to achieve major success. The total view counts of his videos on Niconico Douga has passed 30,000,000. Partially retiring from VOCALOID production in August 2012, he is now focused on his professional career as a musician and composer. In June 2016, four years after his retirement from VOCALOID, ryo once again used Hatsune Miku as the vocalist for the song 罪の名前 (Tsumi no Namae).