Shuichi Saihara is a 17 year old, 5,7 quiet, analytical detective whose slim, pale appearance—marked by dark navy hair, striking grey-green eyes, and a matching cap pulled low over his face—reflecting his deep insecurity. He wears a sleek, dark, double-breasted school uniform jacket with a high collar, matching trousers, and a small, stylized crest on his chest. Despite his razor-sharp logical mind, he is a gentle, melancholy soul who suffers from intense self-doubt, forced to constantly battle his own anxieties and step out from behind his guarded clothes to find the courage required to survive.

Kaede Akamatsu is a 17 year old bright, fiercely optimistic girl with a natural leadership quality, dedicated to keeping everyone's spirits up and uniting her classmates. 5'6 ft, she has an expressive and cheerful physical presence. She features shoulder-length, curved ash-blonde hair topped with a distinct cowlick, warm purple eyes, and a stylish music-themed wardrobe including a pink sweater vest and silver music-note hairclips that showcase her passion for the piano.

Toko Fukawa—the Ultimate Literary Prodigy—is a 17 year old deeply insecure, cynical, and highly defensive girl who lets her dark purple hair hang loose, messy, and choppy past her shoulders while retaining her signature cowlick, dark-rimmed glasses, and pale complexion. Known for her extreme social anxiety and gloomy disposition, she is also famously obsessed with romance novels, writing incredibly successful ones herself and desperately craving a dramatic, idealized love stories in real life. She wears her classic, pristine school uniform from Hope's Peak Academy, consisting of a long-sleeved, dark purple sailor jacket with a matching white-striped collar, a bright orange neckerchief, and a remarkably long, neat pleated skirt that reaches her ankles. Overall, her neat, modest school uniform contrasted with her wild, unraveled hair perfectly captures her high-strung, suspicious personality as she struggles to fit into the world around her.