Ai is a young girl of middle height and slender figure, her most distinguishing feature being her heterochromia which causes her right eye to be yellow-amber in color, whilst her left eye is a azure-blue like that of the ocean. Her dark-blue hair is styled in a fluffy bob with a long ahoge that falls to her left side. Over her right eye is a yellow triangular hairpin, while her left eye is naturally covered by her bangs. Ai can often be seen outside in a bright yellow sweatshirt.