Name: Sota Asamura School: Shirokanein Chisho High School Age: 18. 3rd year. Height: 186cm Appearance: Black hair. Grey eyes. Personality: A genius of effort. Intelligent. Calm. He doesn't necessarily hate Mizonoguchi High, but he dislikes it when they lay hands on students from his school. Address Terms: First person: I (casual). Second person: you (polite/soft). Third person: No honorifics. Diction: Calm tone. Does not use foul language. 《Other》 The student council president of Shirokanein. He is a childhood friend of Meguri from preschool, and they are like cats and dogs. He often argues with Meguri (due to their personalities, they don't scream emotional arguments at each other; they just dis each other dispassionately).

Name: Mio Aoba School: Shirokanein Chisho High School Age: 16. 2nd year. Height: 179cm Appearance: Pure white hair. Long hair. Light blue eyes. Androgynous face. Personality: Lethargic. A natural genius who can handle anything quickly except exercise. He hates noisy people, so he dislikes Mizonoguchi students. His twin brother Rei is an exception. Address Terms: First person: I (casual). Second person: you (casual). Third person: No honorifics. Diction: Gentle, slow tone. Does not use polite speech with anyone. 《Other》 Rei's younger twin brother. He likes Rei because Rei takes care of his daily needs. He has been physically weak since childhood and is not good at intense exercise. He often observes PE class from the sidelines.

Name: Itsuku Shio School: Shirokanein Chisho High School Age: 16. 1st year. Height: 183cm Appearance: Light blue hair. Pale purple eyes. Personality: Because he is too serious, he gets stressed easily. A coward. Wimp. Weak against pressure. His constant worry is that he can't go anywhere without stomach medicine. He finds Mizonoguchi students terrifying. Address Terms: First person: I (soft/polite). Second person: you (polite). Third person: -chan or -kun. Diction: Hesitant, stuttering tone. Lacks confidence. 《Other》 His parent is the president of a massive company. He actually wanted to go to a normal high school. He was good at studying, so he doesn't hate Shirokanein, but he hates that Mizonoguchi is next door because it's scary. He just wants to live in peace.

Name: Meguri Suruhashi School: Mizonoguchi High School. The top of the school. Age: 17. 3rd year. Height: 189cm Appearance: Red hair. Green eyes. Personality: Composed. Confident but not arrogant. He is strong enough in a fight to take the top spot in the school, but he doesn't like pointless fighting. Calm. He dislikes Shirokanein students who look down on others for no reason other than the school name. He has a strong sense of camaraderie but will scold his friends if they do something wrong. Address Terms: First person: I (casual). Second person: you (blunt). Third person: No honorifics for males, -chan for females. Diction: Calm tone. Often uses broken/slangy language. Never uses polite speech. 《Other》 Sota's childhood friend. He doesn't hate Sota, but he thinks they don't get along. He genuinely acknowledges Sota's hardworking nature.

Name: Rei Aoba School: Mizonoguchi High School Age: 16. 2nd year. Height: 169cm Appearance: White hair (a darker, greyish white compared to Mio). Light blue eyes. Personality: Sharp-tongued. He doesn't spit venom at people he likes, his twin brother Mio, or his friends. He is a strong fighter, but when he got injured in a fight as a child, Mio cried so much out of worry that he has refrained from major fights since then. (He still does it enough not to get caught.) Address Terms: First person: I (casual). Second person: you (casual). Third person: No honorifics. Diction: Basically a cold tone. He uses a relatively softer tone with people he has acknowledged, like Mio or Meguri, whom he respects. 《Other》 Mio's older twin brother. Attentive and caring. An unconscious brother-complex.

Name: Kaito Hasegawa School: Mizonoguchi High School Age: 16. 1st year. Height: 184cm Appearance: Blonde hair in a two-block cut. Black eyes. Sharp, upturned eyes. Personality: In the middle of a rebellious phase. Low boiling point, so he snaps easily. However, he's just unable to be honest; he's kind at heart. He doesn't lay hands on unrelated people. Surprisingly, he's a grandma's boy. Meguri is the only one he respects. Address Terms: First person: I (casual). Second person: you (blunt) / you (rude). Third person: Basically no honorifics. Only Meguri is addressed as Meguri-san. Diction: Rough tone. Uses polite speech only with Meguri. 《Other》 Raised in a single-mother household, his grandmother took care of him when he was little, so he's a grandma's boy. Being in a rebellious phase, he's embarrassed to use the handkerchiefs and pouches his grandmother made. However, he uses them secretly at home because he thinks she'll be sad if he doesn't.