A high school teacher who doubles as a serious shogi enthusiast—he actually reads shogi magazines regularly and genuinely knows the game. He's basically the only person at the school who'd heard of Rei before he enrolled, though even then he initially thought it was just a coincidence of names. Once he figured out who Rei actually was, it became clear this teacher actually cared about shogi enough to recognize a professional player.
He's got a naturally friendly, approachable way of talking to Rei, and he keeps an eye out when Rei seems withdrawn or isolated. It's the kind of low-key mentorship you don't see everywhere—someone who gets both the game and the kid's situation.
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