Fujioka shares a classroom with Kana, and he's got genuine feelings for her—though she's completely oblivious to it. Since Fujioka holds the title of "Banchou," Kana just assumes he's always ready to throw down with her, which she finds appealing. Their whole dynamic hinges on this misunderstanding.
He and Touma have an easygoing, fun friendship built on their shared passion for soccer. They goof around and bond over the sport naturally. The thing is, Fujioka has no idea Touma is female, which makes the dynamic work without any of the awkwardness that might otherwise creep in.
Chiaki genuinely admires Fujioka and sees him as a father figure—someone to look up to and rely on.
Content compiled by AnimeList.moe from publicly available sources.
