Jasper

One of the chief's aides. A tall, slender man. He serves as the referee for the ceremonial match. Blood type A. It seems he possesses considerable skill, as the rule is that the referee for the ceremonial match is the runner-up from the previous tournament. According to Chrome, he never overlooks any foul play during the match, such as attacks from the sidelines. Compared to Turquoise, who is also a chief's aide, he is more flexible. When Kohaku attempted to participate in the ceremonial match, he allowed her to enter, stating that there was no rule against women participating. When Ginrou took Ruri's words literally, he mentally retorted, "Learn to read between the lines of what people say a little."