Onoda is the protagonist of the series and a high school freshman. He is a member of the Sohoku High Bicycle Club and a climbing specialist. He is also evidently an anime otaku. He is quite shy and has a hard time speaking up for himself, but ever since meeting Shunsuke Imaizumi, his courage has been growing and has stepped into the world of bicycles. Although he does not have a lot of stamina, he is capable of riding with extremely high cadences even when climbing uphill. He is a natural climber and a fast learner who was able to learn the dancing technique in a very short period of time. To help him in his climbing, the team captain Kinjou assigned Makishima to mentor him in climbing who tells him to follow his own style when learning cycling. During the training camp, Kinjou switched his tires with an older pair to build his stamina and figure out how to use his gearshift. He also didn't tell him he gave him this handicap ostensibly in order to test him and see if he could figure out his bike on his own though perhaps so that Makishima would feel compelled to enlighten him and bond with the fellow climber.