Naoto is a girl with an androgynous appearance, Naoto has a short blue hair and gray eyes. Naoto has a slender figure and is the short. She always wears a blue cap.

Naoto wears a dark blue double-breasted cardigan coat (which she says is custom made) with a light blue bowtie (on her white dress shirt underneath) and yellow buttons and plaid blue pants.

Naoto is an intelligent, sophisticated, misson-focused detective usually uninterested in romance.