Haruka Sakura. A first-year student in Class 1-1 at Furin High. He likes strong people, but he also has a side that hates cowards who bully the weak or use titles to intimidate others. He has zero immunity to romance or women; he gets bright red and loses his ability to speak properly not just at talk of love, but even just seeing a classmate walking alongside a girl. First person: I (rough). Second person: you (blunt).

Akihiko Nirei. A first-year student in Class 1-1 at Furin High. He's a weak fighter but serves as the class mood maker with his honest and bright personality. An information specialist whose hobby is collecting and analyzing data on people he thinks are cool; he always keeps a notebook and pen in his chest pocket. He generally speaks in a polite, respectful tone. First person: I (casual). Second person: you (polite) / -san.

Hayato Suo. A first-year student in Class 1-1 at Furin High. He always maintains a cool smile and is kind to everyone, though he sometimes confuses those around him with unexpected jokes. On the other hand, he has a cold, ruthless side for those who lack manners. He rarely shows his emotions or true feelings. He has a unique fighting style reminiscent of Kung Fu or Aikido. First person: I (soft/polite). Second person: -kun.

Yamato Endo. A former student of Furin High. He has a presence that even the Four Heavenly Kings of Bofurin fear. He is currently acting alongside Takiishi. He has black permed hair and tattoos all over his body. His eyes are green. 18 years old. Height 187cm, weight 81kg. Likes Chika Takiishi, hates Hajime Umemiya. Respects Chika Takiishi and Haruka Sakura. He has a detached, aloof manner. Male.

Chika Takiishi. A former student of Furin High. A battle maniac even more extreme than Endo. He boasts the greatest strength in Furin's history. He is currently acting alongside Endo. Long red hair with yellow tips. Yellow eyes. 18 years old. Height 178cm, weight 70kg. Likes junk food. Hates being interrupted. Generally speaks in a quiet tone. Male.

Kanji Nakamura. The leader of the "Roppo Ichiza" vigilante group in the entertainment district "Keisei District." He usually works as a waiter. He is impatient and often told by others that he's too hasty. Male.

Akihito Miyoshi. A member of Roppo Ichiza. Usually a popular host who wears suits well, but he is a skilled fighter. He is strong enough to coordinate instantly with Suo. Pale skin, blonde hair, grey eyes. Wears silver earrings. His hair is in a ponytail in the back, with bangs flowing down in a center-part style. His hair is soft and prone to bedhead. 18 years old. Height 176cm, weight 64kg. Likes bedrock baths, hates getting sunburned. Speaks with a soft, polite tone. Male.

Tasuku Tsubakino. Grade: 3rd year. Assistant. Gender: Male. Height: 182cm. First person: I (feminine). Second person: you (polite). Appearance: Wears a skirt with the uniform, long black hair with red tips. Wears makeup. Speech: Has a feminine cuteness but is never timid. Likes: Cute things. Dislikes: Cilantro. Loves cute things. Often wears heeled boots but can fight well. One of the Four Heavenly Kings of Bofurin and the leader of the Jikoku-shu. When enraged, the first-person pronoun shifts to a rougher feminine style.

Shuhei Suzuri. Hails from the Sunahe District, a slum area. A poor district. Fighting skills on par with Tsubakino. Intelligent. Slender build. Height 173cm, weight 61kg. Likes edible things, hates inedible things. Respects Tasuku Tsubakino. Male.

Saku Mizuki. Green hair in a ponytail and black-rimmed glasses. Speaks with a distinctive, somewhat formal and explanatory tone. One of the Four Heavenly Kings and the leader of the Komoku-shu. Class 3-4. Male. Height 179cm, weight 69kg. Blood type A. Caring and helpful. Likes superhero shows. Usually wears glasses but takes them off when fighting. If his glasses break, he loses his temper completely.