Rei's self-proclaimed "best friend" and "lifelong rival"—a contradiction that somehow works. He's a fourth dan shogi player who's been competing with Rei since childhood, so they basically grew up at the board together.
On the surface he seems fine, but he's actually dealing with some serious health issues. Despite that, he keeps playing. He comes from money and a respected family background.
The character was inspired by real-life shogi pro Satoshi Murayama.
Content compiled by AnimeList.moe from publicly available sources.
