Ryo is at the 3rd year of Senomon. taciturn, and a modest man but his physical strength is overwhelming. He was young when his father's business failed, so his father ended up working with the Amagai Group as their driver. Since junior high school, his natural physical ability became stronger. By the time, he entered Nami High school, he was undefeated and had a reputation of a "lone genius". Ryo has always been with Kohei Amagai since childhood. He aims to overthrow Oya Koukou and S.W.O.R.D