Ai is portrayed as a beautiful young girl with a delicate and dainty frame.
She has pale skin, waist length - jet black hair with bangs that's styled in a hime-cut, large ruby red eyes that were originally brown prior to being buried alive by her villagers, and visible light pink colored lips.
Because of her youthful appearance, due to being sacrificed by her villagers at a fairly young age, Ai maintains the appearance of a thirteen-year-old and has remained as such for well over four-hundred years.