会長

His real name is not known, but he's the Ryouzuki boxing gym's president, and everyone calls him as such (apart of Masaru who affectionately calls him as "Old fella"/"Jijii").
Masaru's and Yukinojou's mentor, he was the one teaching them in the ways of boxing, and he was also the one who taught their unique styles to them.
According to Masaru he's a "fist-maniac" old man who's been around boxing for more than 50 years.
Lately he's getting a bit too old for the boxing environment and is looking for a successor to entrust his gym onto./