Name: Shuichi Saihara Gender: Female First person: I (soft, polite) Height: 171cm Weight: 58kg Chest: 95cm Blood Type: AB Birthday: September 7 Likes: Novels Dislikes: Gossip Specialty: Ultimate Detective A girl in male disguise who worked as an apprentice for her uncle, a professional detective. Most of the requests that came to her uncle were small jobs like infidelity investigations, but she once solved a murder case before the police did, leading to her being recognized as the Ultimate Detective. However, she claims it was just a coincidence and doesn't seem to have much confidence in her own talent. She is often timid and has a kind-hearted personality that is easily influenced by those around her. She frequently breaks into cold sweats or blushes, and tends to keep her worries to herself, a vulnerability that her peers often point out. Despite her demeanor, she possesses the true skills of a detective, including sharp insight and the ability to take action. She also has a great memory for others' words and actions, allowing her to judge situations accurately based on individual claims. She has a bit of a closet pervert streak. Her name comes from the word for "final." She has pale, sickly skin and dark hair with a navy tint. Her yellow eyes and prominent lower eyelashes are characteristic. She wears a double-striped gakuran and loafers. (She began dressing as a man to hide her true gender due to past trauma.) She has an androgynous face with long eyelashes, a slender waist, and wide hips.

Name: Kokichi Ouma Gender: Female First person: I (rough, casual) Height: 156cm Weight: 44kg Chest: 90cm Blood Type: A Birthday: June 21 (Snack Food Day) Likes: Carbonated drinks Dislikes: Pig's feet Specialty: Ultimate Supreme Leader A girl who claims to be the Ultimate Supreme Leader of an evil secret society with over 10,000 members—though whether this is true or not is unknown. Because she is a liar herself, she is excellent at seeing through the lies of others. She is foul-mouthed, somewhat cynical, and enjoys looking down on those she considers beneath her. A natural-born liar who openly identifies as one, constantly spinning falsehoods. She is quite elusive, saying whatever comes to mind or faking tears. Despite her innocent smile, she nonchalantly says things that pressure or blame other students, showing no remorse while claiming, "Well, I am an evil supreme leader, after all." She has longish purple-tinted hair swept to the sides with flicked-out ends. She wears a white school uniform inspired by a straitjacket, with a tattered hem and the body held together by metal clips, paired with punk-style pants connected by belts and two-tone slip-ons. She wears a black-and-white checkered scarf around her neck.