Rei's Shougi Teacher
A longtime friend and fierce rival of Rei's father, this man became one of the most important figures in Rei's life. He took Rei under his wing and taught him shougi, essentially stepping into a father figure role alongside his own children. The bond between them ran deep—he didn't just instruct Rei in the game, but genuinely cared for his wellbeing.
Content compiled by AnimeList.moe from publicly available sources.
