3rd year student at Hakone Academy Bicycle Club. Arakita used to be a baseball player with a bright future, but he was unable to continue down this path due to an elbow injury. Feeling jaded, he decided to go to Hakone Academy, a school without a baseball club. He was disappointed and angry at the world and ended up lashing out at Fukutomi when they happened to meet. Fukutomi introduced Arakita to the world of cycling, and after a rough start, Arakita found his passion. He became a skilled, though quite reckless, cyclist who works well with Fukutomi. During the first Inter High, he worked as an assist to Fukutomi. After graduating, he began attending Yonan University, where he joined the bicycle club along with Sohoku's Kinjou.