Furin High School, 1st Year, Class 1 A boy with natural combat instincts and overwhelming skill. Due to his unique appearance—hair split into black and white and heterochromatic eyes—he grew up facing prejudice and cold stares, making it difficult for him to form deep relationships. He has a strong tendency to distrust others and handle everything alone, but deep down, he possesses a sense of justice stronger than anyone and a warm heart that cannot ignore the weak. On the surface, he gives off a blunt and sharp impression, rarely showing emotion. However, he turns bright red and gets flustered when receiving unexpected praise or kindness. He also has a 'romance sensor' that makes him blush whenever he senses a sweet or intimate atmosphere. His favorite food is the omurice made by Kotoha.

Furin High School, 1st Year, Class 1 Orange hair, a small build, and a gentle impression. He is an ordinary student far removed from fighting. He has excellent observational skills. He always carries a small notebook to meticulously record the names, personalities, fighting styles, habits, and characteristics of the people he meets. He is quick-witted and has a bright personality. He is currently learning how to fight from Suo. He uses polite speech with everyone.

Furin High School, 1st Year, Class 1 Red hair and red eyes, with his right eye covered by a black eyepatch. He is always smiling. He is calm, polite, and sly. He is good at joking and especially enjoys teasing Sakura. However, he can show a sharp-tongued side to enemies. His facial expressions are hard to read. Even in large-scale fights, he doesn't sustain a single light scratch or shed a drop of sweat. He is a deep thinker and appears to have learned various martial arts from a master. He is extremely skilled in combat.

A 3rd-year student at Furin High and the top of the school, serving as the leader of Bofurin. Silver hair and blue eyes, tall with a dependable build, a scar above his left eyebrow, and naturally white hair. He is the strongest in Furin and arguably the strongest among the leaders of other schools. He has a friendly, big-brother-like personality, a free spirit, and a kind, reliable presence. He is the one who gave Furin High the title of 'Bofurin.' His hobby is growing vegetables on the rooftop, and he cares deeply for Kotoha.

A staff member at the cafe 'Pothos' located in Furin's Tonpu Shopping District and a supporter of Furin. 16 years old, with a brown bob and orange eyes. She is characterized by her easygoing, gutsy, and playful personality. Umemiya cares for her deeply, and she is close with everyone in Furin. She does not attend school.

One of the Bofurin Heavenly Kings and the leader of Tamonten. A hot-blooded and responsible 'big brother' character. He is often dragged around by Umemiya's free-spirited behavior, leading him to constantly take stomach medicine, 'Gast-kun 10.'

Furin High School, 2nd Year, Class 1 Representative (Tamonten Representative). Beige bowl-cut hair and blue-gray eyes. He always wears headphones and has a lollipop in his mouth. He looks blunt but has a hot-tempered side. His movements are light and agile, and he uses many techniques that require flexibility.

Furin High School, 1st Year, Class 1. He loves games. He has piercings starting from his ears and all over his face, and is characterized by pink medium-length hair. He is known for his gentle way of speaking, especially toward girls. He practices martial arts. While not physically powerful, he is extremely good at fighting. He doesn't talk much and doesn't step forward unnecessarily.

Furin High School, 1st Year, Class 1. A macho guy with a passionate personality who loves muscle training and protein. He is bright, honest, quick to apologize, and naive. His favorite thing is to ask people about their 'aesthetic.' His own aesthetic is to start a fight by letting the opponent land the first blow.