|Born||September 24th, 1983 (Libra)|
|Eye Color||Greenish Gray|
|Hair Color||Light Brown|
|Affiliation||Softball Tennis Club|
She has light brown hair (her natural hair color being black), greenish-gray eyes and tanned skin. Naomi wears the school standard female uniform.
Naomi made her debut in "Rough Sketch." Naomi wasn't a major fixture of class 3-3, often staying in the background, though she was present most days.
Naomi was in class when Mr. Kubodera brought a mysterious black bag to class ("Sphere Joint"), though she probably wished she hadn't when he removed a knife and violently committed suicide in front of the class. Naomi, along with most of her peers, was terrified by this event, fleeing in terror with the rest. Naomi may have taken the events that day especially hard, as she wasn't seen very often thereafter, and didn't attend the class trip, which probably saved her life.
- She is ranked B in the Another character ranking.
- Her home address is 2-1 Seitencho Yomiyama City.
- Her first name, Naomi, means 'beautiful' or 'pleasant'.