She had been asked on several occasions about her choice of dress, and many of her hardcore fans already knew the answer. It was simple, really; the tournament committee had a particular taste for what their referee girls wore, namely that they wore three colors — red, pink, and black — and that they wear a bow choker. It was distinctive dress that characterized them but still gave them a degree of individuality.
Koto in particular liked pink the least of the choices, but when she spotted the shorts, she decided she was okay with it. They were cute, and the color worked to balance out the black of her tights. By the time she had grown used to them, she decided she liked pink, after all, and even after the Dark Tournament was over, her outfit was a signature — something that everyone could recognize her by. And what's there to not like about that?