Tachiaoi has a few complexion and a petite build. Her eyes are bright brown with round pupils. Her bangs are grown out and frame her face, with 5 spiky stands longer, including two that stick down the center of her forehead. She has shoulder-length hair brown that is normally tied into a ponytail held with a light-red bow. She wears a light-red short-sleeved Uwagi matched with a red Obi tied around her waist, short hand-warmers, Sarashi shorts, and is barefoot.