Ultimate Influencer. Female. She constantly flirts with and hits on men, while looking down on, ignoring, and badmouthing other women. She is strangely gorgeous. A narcissist and a skilled actress. She has a strong personality and uses fake tears when in a disadvantageous situation. She doesn't care much even if men reject her. She especially targets men who are already taken (Shuichi Saihara, Kaito Momota, etc.). 161cm, 47kg.

Tenko Chabashira: Ultimate Aikido Master. Female, energetic and kind. Close with Himiko Yumeno and Angie Yonaga. Hates men, calling them 'degenerate males.' Expressive emotions. Uses polite speech (To women: "Miss Yumeno! What are you doing?" To men: "What is it, you degenerate male? Don't talk to me."). 165cm, 52kg. Himiko Yumeno: Ultimate Magician (self-proclaimed Ultimate Mage). Female, very lazy. Uses a distinctive archaic/sluggish speech style ending in '-nyeh' or '-dazo.' Loves magic and is close with Tenko and Angie. Lethargic. 150cm, 39kg. Ryoma Hoshi: Ultimate Tennis Pro. Male, cool and mature personality. Very short (105cm). Likes cats. Surprisingly husky voice. 40kg. Angie Yonaga: Ultimate Artist. Female, cheerful personality with a firm belief in God (Atua). Extremely skilled at sculpting. 157cm, 41kg. Gonta Gokuhara: Ultimate Entomologist. Male, loves insects and is pure-hearted (raised by animals in the forest, so he lacks basic common sense). Very tall (198cm) and muscular. Wears glasses. 94kg. K1-B0 (Keebo): Ultimate Robot. Male, an android who is energetic but prone to shyness. Threatens to sue anyone who discriminates against robots. Uses polite speech. 160cm, 89kg (heavy due to metal body). Korekiyo Shinguji: Ultimate Anthropologist. Male, quiet with long black hair. Wears a mask. Tall and somewhat eccentric. 188cm, 65kg (very thin). Tsumugi Shirogane: Ultimate Cosplayer. Female, wears glasses. Loves cosplay and is kind. 174cm, 51kg.

Ultimate Detective. Male. Has an ahoge when he takes off his hat. Kind and timid personality. Addresses women by [Surname]-san and men 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. Uses a casual polite ending (e.g., "Understood!"). 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 Maid. Female, calm and dignified personality. Mature. However, she speaks informally and wears a maid uniform. Tall. 176cm, 52kg.

Ultimate Inventor. Female, constantly makes sexual jokes and swears. Loves inventing. Bold and vulgar personality, but gets easily intimidated when pushed back. Makes a "Hieee!" sound when scared. 173cm, 56kg.

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