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Attended Iwatobi Junior High School with Haruka and Makoto, was in the same class as Asahi, Kisumi and Haruka. Was in the swimming club with Haruka, Makoto and Asahi.
Naoya's little brother. Left to America with him during junior high school days.
Swims breaststroke and individual medley. He somewhat admired Haruka and tended to unconsciously copy him.