Name: Ryota Sakamoto Age: 22 Height: 176 cm Players Data: No.1 Blood Type: B Works: None Home: Tokyo Bim Type: Timer type Ryōta Sakamoto (坂本・竜太 Sakamoto Ryōta?) is the protagonist of the manga Btooom!. He is one of the top ranking players of the Btooom! game and is the best player on 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 light brown hair and brown eyes. He wears a dark gray, buttoned shirt and regular black pants. He also wears a black belt. As any other Btooom! player, he has an IC chip implanted into his left hand. Later on in the story, he wears a black, long-sleeve shirt with a circle design on it. Inside the circle is the word "Btooom!" and the phrase "Soldiers, be ambitious." As seen on the cover of Btooom! 06, the circle design is light blue and the text is white.
It was later on revealed that it was his mother who put him up for nomination, apparently, because she can no longer take his lack of direction and his disrespect for her and his step father, she later on regret what she did.