Most likely nicknamed for military beret and camouflage in his outfit, "Colonel" is one of Rokudou's friends from the beginning of the series. He shares Rokudou's dream of living a peaceful school life, free of his delinquent bullies. Along with Rokudou and their friend "Manager", he huddles in a bathroom stall during school hours to vent his frustration with the way his life at Amori High is. He is the first to theorize that the ability Rokudou received from the scroll was that of making him popular with "bad girls." He frequently assists with conflicts Rokudou is involved in, along with his friends.