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About : Age: 22 Height: 176 cm Players data: No.1 Blood type: B Works: none Home: Tokyo Bim type: timer type Ryouta Sakamoto is the protagonist of the manga Btooom!. He is one of the top ranking players of the Btooom! game and is the best player in Japan. He is ranked #10 worldwide. He has been nominated to participate in the real life Btooom! game. He is a regular guy in his twenties. He is of average height and weight. He has black hair and brown eyes. He wears a dark gray, buttoned shirt and regula...