He bears a striking resemblance to Kiyama Hiroto in the original series, though with noticeably darker hair, eyes, and skin. Interestingly, his casual outfit mirrors Hiroto's exactly—same style, different color—with a blue jacket where Hiroto wears pale green.
By the time of Inazuma Eleven Ares no Tenbin, his look has shifted considerably. He's got fair skin now, messy short gray hair with white-tinted bangs that give off a seaweed-like vibe. His eyes are a pale red, and there's a blue lightning-shaped tattoo running from his left cheek up to his left eyebrow. His casual style has gotten darker too: a striped black shirt paired with matching black pants and shoes.
Content compiled by AnimeList.moe from publicly available sources.