A refined, serious youth, with formal body language and gestures. Naoto is a young detective under the case of Inaba's Murders.
Naoto Shirogane is a tomboyish girl whose appearance and mannerisms closely resemble that of Raidou Kuzunoha the 14th. She is known as a famous high school detective, given the glorious title of "Detective Prince" by the media. Naoto is adept in the use of revolvers, and her Persona is summoned by shooting the card. Naoto's Persona is well-rounded with Light, Dark, Almighty and physical skills at her disposal.

The young Prince of Silverland, Sapphire is in reality a girl, but must pretend to be a boy in order to inherit the throne and prevent the evil Duke Duralumon from taking power. Her personality is more refined than tomboyish, but she's good with a sword and at night fights crime as the masked Phantom Knight. She's good-hearted, has a strong sense of justice and is competent and level-headed as well. Although most of her time is spent as Prince Sapphire, later in the series she is able to go about as a girl (wearing a blonde wig) in the persona of the Princess, Prince Sapphire's sister. In this way she is able to court Prince Frank.

Yoshino is a tall, masculine girl who at the beginning of Wandering Son is a fifth grader in Shuuichi's class. Otherwise known as Takatsuki-kun (高槻くん) by her classmates, with an honorific used mainly with boys, she is a girl who wants to become a boy. She usually refrains from dressing in traditionally feminine clothes, such as skirts or dresses, in spite of her mother's insistence on buying her such clothes.Yoshino prefers to dress and act like a boy, but usually abstains for anything which would draw attention to herself, such as going to school in a male uniform after entering junior high. However, she does on occasion dress in a male school uniform and go to neighboring cities where she impersonates a boy; during one such time, she enjoys how she is hit on by an older woman. Yoshino wants to look "cool" if she can and wears clothes which make her look less like a girl.

The second generation sharpener Melk. She is the adoptive daughter of Melk the first. She doesn't recognize her own sharpening skills, but Melk the first told Toriko they're both on the same level of sharpening ability. She tought her father that was disappeared for six years died in the Heavy Hole, but it's revealed he was trying to forge a knife for preparing Bishikushin Acacia's Full-Course salad "Air". After Toriko returns from the Heavy Hole with the Melk Stardust, she makes Komatsu a new knife using his broken knife and the Deroth Dragon's fang.