|QUIZ TIME! Should you read any further? You might find something out you regret! Spoil at your own risk!|
26 March (Aries) 
Junichirou Tanizaki (brother)
Naomi is a teenaged (roughly 16 or 17) girl. She has long black hair in a stylish cut with the bangs swept to the side. She wears a standard seifuku with a long skirt that comes just above her knees, and black socks that come to the middle of her calves. She has a beauty mark underneath her left eye.
Naomi is a bold and strong-willed young woman, who never shies away from involving herself in a case, more specifically, one's that involve her older brother's well-being. Despite not being an ability user, she is often embroiled in the agency's conflict, but when told to leave, she mostly refuses.
As a Detective Agency clerk, Naomi is rather intelligent and quick-thinking, even amidst perilous circumstances. She is also shown to be mentally resilient because in spite of being a near-frequent victim to kidnappings and ability users, she takes it quite well and is outwardly unaffected.
Probably one of Naomi's most prominent characteristic would be her deep-seated love for her elder brother, whom she is always with. When with her brother, she can be both childish and provocative. Her feelings seem to go beyond that of ordinary sisterly love and can be seen as romantic in nature due to a number of questionable circumstances and suggestive remarks. However, be it romantic or platonic, Naomi remains unwavering in her devotion towards her brother and does what she can to protect him from harms way.
Besides her brother, Naomi is also kind and caring towards the other members of the Armed Detective Company. She visibly shows concern when the others were contemplating abandoning Atsushi during his kidnapping and easily forgives him when he almost lost control of his powers.
Naomi is not an ability user and is therefore incapable of using an ability. However, she has immense endurance for a normal human being as she protected her brother from Higuchi's firearm assault using her own body, despite suffering major injuries.
Naomi lives alone with her older brother, Junichirou. Not much is said on their past or where their parents are.
- Naomi is named after the titular character of Tanizaki Junichirou's novel, A Fool's Love (痴人の愛). It can be thought that the anime Naomi's romantically active, rather promiscuous attitude is based off this, and other female characters that appear in Jun'ichiro Tanizaki's work.
- This makes her one of the only characters not named after an author, but rather named after a character from an authors work; Elise being another one.
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