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Riku Kaitani (甲斐谷陸)Position: Running Back/Safety
Jersey Number: 29
40-yard dash record: 4.5 seconds
Bench Press: 60 kg
1st Year Student (Grade 10)
An extremely fast grey-haired boy and happens to be the one who taught Sena how to run. When Riku was in elementary school, he saw Sena being bullied and he used his speed to save him. After that Riku taught Sena that if he could run fast, he would never be bullied again. Sadly, Sena used his speed to be a gopher, (though it's ironic that being a gopher is what helped build up his speed). Riku soon left Sena's school because his family needed to move, but he and Sena meet again later in the series. Like Shin, he was able to quickly deduce Sena's identity as Eyeshield 21.