President

His real name is unknown, but he's the Ryouzuki boxing gym's president, and everyone calls him as such.

Masaru and Yukinojou's mentor, he was the one teaching them not only the ways of boxing but also unique styles of it. According to Masaru he's a "fist-maniac" old man who's been boxing around 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.