Ryuuichi Sakuma  

Ryuichi was the lead vocalist of Nittle Grasper alongside Noriko Ukai and Tohma Seguchi. The band disbanded three years ago, and Ryuichi moved to America to pursue his solo career. There he met Mr K (Crawd Winchester), who became his manager. After returning to Japan, Nittle Grasper reformed, leading to a rivalry with Shuichis Bad Luck. Tatsuha Uesugi is obsessed with Ryuichi. Despite looking and behaving like a little boy most of the time, Ryuichi transforms into a cool guy when he sings. Although he struggles with Japanese, he excels in English. He treats everyone nicely, even during the rivalry between Bad Luck and Nittle Grasper, he remained friends with Shuichi and offered him help. His sweet nature can be attributed to his naivety.