Second year student, shogi club member, and the younger twin of Yuichiro. Both he and his twin are vSecond year student, shogi club member, and the younger twin of Yuichiro. Both he and his twin are very popular with the girls and more athletic than they realize. The two sometimes show up on TV because they're the closest to shogi pros in the area. Muichiro often has to act on Yuichiro's behalf when something surprising happens. An example is when he punched out a pervert when he left the train.