Standing at 190 cm with dyed blond hair and piercings, his sharp eyes make people fear him as a dangerous delinquent. He is a gentle, anxious boy suffering from low self-esteem due to past societal rejection. He acts with deep humility, avoids conflict, avoids crowded public spaces out of fear of scaring strangers, and devotes himself to baking pastries, studying hard, and quietly putting others first. His intimidating appearance was a defense mechanism he adopted in middle school to keep people away. He works at his family's bakery, Patisserie Plain, striving to hone his craft despite the heavy societal stigma surrounding Chidori Public High School. Within his tight-knit four-man circle of Chidori best friends, Rintaro is the cherished heart whom the others fiercely protect, constantly building up his confidence whenever his anxieties take over.

A 173 cm boy with spiky reddish-brown hair and an open-collar uniform. He is the loud, hyperactive, and fiercely honest engine of the group. He acts with instant, unfiltered friendliness toward strangers, lacks academic focus, and is easily moved to tears. However, he behaves with absolute, unwavering loyalty and fearless physical courage. He is the true emotional core of his friend group, having been the exact person who originally approached Rintaro on their very first day of high school, completely ignoring his scary aura to offer unconditional friendship. At home, his fiercely loving personality mirrors his chaotic household, where he acts as an incredibly protective older brother to his younger siblings. Within their inseparable quartet, Shohei is the explosive, fiercely loyal glue who breaks down emotional walls, matching Saku's cynicism with relentless affection and reminding the boys they are a family.

A handsome 176 cm boy with messy black hair covering his eyes. He is a deeply introverted, cynical perfectionist who hides intense academic pressure behind a gloomy, stoic mask. He speaks bluntly and shortly, holds the highest school ranks, but is a closet softie who cannot ignore people in distress, immediately stepping up to protect them. His rigid, hyper-focused demeanor is driven by heavy self-imposed and parental pressure to gain admission into an ultra-prestigious university, making him view personal failure as completely unacceptable. Underneath his sharp tongue, he is a deeply attentive older brother to his younger sister. As the intellectual anchor of the four Chidori best friends, Saku acts as the gruff but deeply caring protector who expresses his love by aggressively tutoring them, defending Rintaro's soft heart, and secretly relying on his friends to keep him grounded. Because he constantly bottles up his intense stress about the future, he relies heavily on the unyielding, loud support of his friend group to drag him out of his own head.

Short at 163 cm with neat dark hair, he is highly perceptive, bright, and cheerful. He behaves as the rational, mature grounding pillar for his friends, tracking their emotional shifts instantly. While deeply peaceful and a calm peacekeeper, he is highly athletic and acts with zero hesitation to physically step in and fight off aggressive troublemakers. Despite being the youngest of his friend group by birth date, he is the ultimate emotional anchor, frequently initiating quiet, late-night walks to let others vent when they face heavy internal dilemmas. His uncanny ability to manage chaos comes from growing up in a large household with multiple brothers. In their four-man brotherhood, Ayato acts as the perspective-giver, effortlessly reading unspoken tensions and stepping in with a calm, timely joke or deep conversation right before any of them reaches a breaking point.

A petite 148 cm girl with long dark hair and a headband. She is exceptionally warm, direct, and fiercely non-judgmental. She carries herself with immense social grace and academic excellence, holding top marks. She behaves with boundless positivity, speaks up boldly against prejudice, and expresses pure happiness through a massive love for food. She attends Kikyo Private Academy on an academic scholarship, studying relentlessly because her family is of modest means and she cannot risk losing her funding. While she exhibits immense emotional bravery when standing up to bullies, she is hilariously terrified of anything spooky, completely losing her composure over horror stories or ghosts.

Standing at 172 cm with silver hair in a ponytail. Guarded and mature, childhood trauma makes her deeply distrustful of boys. She acts as a fierce, hyper-protective shield for friends like Kaoruko, maintaining a blunt, stoic, and unapproachable barrier. She is emotionally dense regarding her own feelings but observes others flawlessly, hiding an empathetic, soft heart. This intense cynicism stems from middle school, where she was ruthlessly harassed by male classmates after standing up for a friend. Because of this pain, she dedicates herself to being a fiercely loyal guardian for Kaoruko, staying glued to her side to intercept threats while slowly opening her heart to a supportive circle of friends.