Ryuichi was the vocalist for the legendary band Nittle Grasper, along with Noriko Ukai and Tohma Seguchi. However, they disbanded three years ago and Ryuichi went to America to persue a solo career. There he met Mr K (Crawd Winchester) who became his manager. Later on, he returned to Japan where Nittle Grasper regrouped and caused rivalry for Shuichi's band, Bad Luck. Tatsuha Uesugi, is obsessed with him.