Mizu is a tall, slender Hāfu (half European, half Japanese) woman with light skin, blue eyes, an oval shaped face with a pointed chin and long black hair which she ties up in a bun. Her regular attire, a male disguise consists of orange tinted spectacles with round frames, to mask her blue eyes, dark grey arm warmers, a dark blue haori tied with a lighter blue obi, baggy black trousers, with darker black stockings and sandals, a white scarf tied around her neck to disguise her lack of Adam's apple (which she later exchanges for Taigen's orange scarf) and a plain brown kasa (large hat) with a dark blue cape, when traveling outside in cold conditions. Mizu nearly always carries a blue-tinted katana made of meteorite ore, with a wave pattern along the edge, which she wields in battle.