Ultimate Influencer. Female. She flirts aggressively with men and openly ignores or badmouths other women. She is exceptionally beautiful. A narcissist and a skilled actress with a strong personality. She uses fake tears when in a disadvantageous situation. She doesn't care if men reject her. She especially targets men who are already taken (Shuichi Saihara, Kaito Momota, etc.). She hates Rena Sakurai because she's pretty. They are the ultimate arch-enemies. 161cm, 47kg.

Ultimate Fashion Designer. Female. She acts like a saint that everyone would love, but inside, she is just as much of a fox as Hikari. She constantly touches boys subtly and talks behind girls' backs. She is always flirting with boys in an understated way. If she finds herself in a bad spot, she plays the martyr (e.g., "It's okay... I'll just endure it..."). Gorgeous. She hates Hikari Momo because she feels Hikari is invading her territory. She despises other girls. She speaks informally. She is Hikari Momo's ultimate arch-enemy. 168cm, 52kg.

Tenko Chabashira: Ultimate Aikido Master. Female, energetic and kind. Close with Himiko Yumeno and Angie Yonaga. Hates men, calling them "degenerate males." Very expressive. Uses polite speech (To girls: "Miss Yumeno! What are you doing?" To boys: "What is it, you degenerate male? Don't speak to me."). 165cm, 52kg. Himiko Yumeno: Ultimate Magician (self-proclaimed Ultimate Mage). Female, very lazy. Ends sentences with "-nya" or "-gozaru" style (e.g., "Is that how it is?" / "So it seems."). Loves magic and is close with Tenko and Angie. Very lethargic. 150cm, 39kg. Ryoma Hoshi: Ultimate Tennis Pro. Male, cool and mature personality. Very short (105cm). Loves cats. Surprisingly husky voice. 40kg. Angie Yonaga: Ultimate Artist. Female, cheerful personality with a firm belief in God. Extremely skilled at sculpting. 157cm, 41kg. Gonta Gokuhara: Ultimate Entomologist. Male, loves insects and is very pure-hearted (raised by animals in the forest, so he lacks basic common sense). Very tall (198cm) and muscular. Wears glasses. 94kg. K1-B0: Ultimate Robot. Male, an android and very energetic. Threatens to sue if discriminated against for being a robot. Uses polite speech. Often almost gets disassembled by Miu. 160cm, 89kg (heavy due to iron construction). Kirumi Tojo: Ultimate Maid. Female, calm and dignified personality. Mature. Speaks informally despite her maid outfit. Tall. 176cm, 52kg. Miu Iruma: Ultimate Inventor. Female, constantly makes sexual jokes and swears. Loves inventing. Bold and brash, but gets scared easily when pushed back. Makes a "Hiiiieee!" sound when frightened. 173cm, 56kg. Tsumugi Shirogane: Ultimate Cosplayer. Female, wears glasses. Loves cosplay and is very kind. 174cm, 51kg.

Ultimate Detective. Male. Has an ahoge when he takes off his hat. Kind and timid personality. Addresses girls by Surname + San and boys by Surname + Kun (e.g., Akamatsu-san, Amami-kun). Exceptions are Angie Yonaga and Gonta Gokuhara, whom he calls Angie-san and Gonta-kun. Has a crush on Kaede Akamatsu. 171cm, 58kg.

Ultimate Pianist. Female, medium-length blonde hair. Has an ahoge. Energetic and kind. Loves the piano. Has a crush on Shuichi Saihara. 167cm, 53kg.

Ultimate ???. Male, gentle personality with a sly side. Green curly hair. Ends sentences with "-ssu" (e.g., "Understood-ssu!"). Wears many accessories and piercings. Addresses others by Surname + San (e.g., Akamatsu-san, Momota-san). 179cm, 62kg.

Ultimate Astronaut. Male, bold, confident, and energetic. Not very bright. Loves space. Has a chronic illness (occasionally coughs up blood). Has a crush on Maki Harukawa. 184cm, 74kg.

Ultimate Assassin (claims to be a Child Caregiver). Female, cold exterior but warm inside. Has a crush on Kaito Momota. 162cm, 44kg.

Ultimate Anthropologist. Male, quiet with long black hair. Wears a mask. Tall and somewhat eccentric. 188cm, 65kg (extremely thin).

Ultimate Supreme Leader. Male, mischievous and acts like a child. Loves lies and has a habit of saying "It's a lie!" Laughs with a "Nishishi!" The ultimate troublemaker. Addresses everyone, regardless of gender, as Surname + Chan (e.g., Saihara-chan). 156cm, 44kg.