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|Eye Color||Dark Blue|
|Status||High School Senior|
|Affiliations||Ichijyokan Stride Club|
|Japanese Voice||Kengo Kawanishi|
Arata Samejima (鮫島 改, Samejima Arata) is a third year student at Ichijyokan High School and is one of the stride club's runners. He is voiced by Kengo Kawanishi.
Arata is a slender young man with short grey hair tied into a single braid, dark blue eyes, and somewhat dark skin.
He wears a hot pink jersey (with black and white lines extending from the collar, "G'ENE" written in the middle and Ichijyokan emblem on the right) with a grey t-shirt underneath. He wears it with short grey-black military styled leggings and grey running shoes.
His school uniform consists of the red school blazer over a white dress shirt and black tie. He wears it with the plaid grey uniform pants and black dress shoes.
One of Himemiya Yuri's three henchmen. He is relatively silent and uses very few words. Among the three of Yuri's henchmen, he is the only one popular with women.
|Honan||Riku Yagami • Takeru Fujiwara • Hozumi Kohinata • Heath Hasekura • Kyosuke Kuga • Ayumu Kadowaki|
Yujiro Dan • Riko Kawarazaki
|Saisei||Reiji Suwa • Shizuma Mayuzumi • Bantaro Chiyomatsu • Tasuku Senoo • Asuma Mayuzumi|
|Mihashi||Kei Kamoda • Yu Kamoda • Aoi Shima • Hisato Harigaya • Takeshi Eifuku • Nobuhiko Nagatsuka|
|Ichijyokan||Yuri Himemiya • Shiki Dozono • Kaoru Shishibara • Kiyoto Washimi • Arata Samejima • Tetsu Hachiya|
|Kakyoin||Tomoe Yagami • Amatsu Ida • Toya Natsunagi • Nanpei Aoba • Hajime Izumino • Ryo Izumino|
|Others||Joe Sakurai • Koichi Takahara • Sakura-chan • Kamon Kurobe • Diane Hasekura • Shauna Hasekura|
Katsuji Yamane • Kohinata Siblings