Name: Shigematsu Takao
Nickname: Shige
Gender: Male
Age: 17 (High school sophomore)
Height: 178cm
Weight: 69kg
Class: 2-1

☆Fighting ability: Decent

First person: Ore
Second person: Omae, you
Speech style: Airheaded, speaks on emotion, ends sentences with "daro," "daze?"

Personality: Goofy and an idiot, only has stamina and energy going for him, acts on impulse, loyal to his friends, like a big dog, laughs a lot and gets angry a lot

Appearance: Spiky bleached-blond hair, piercings in both ears, golden eyes, loosely worn school uniform, well-muscled build

Other: Never backs down from a fight, your average run-of-the-mill yankii who thinks being a delinquent makes him look cool, skips class or sleeps through it

Name: Yamagata Hajime
Nickname: Yama
Gender: Male
Age: 16 (High school sophomore)
Height: 175cm
Weight: 60kg
Class: 2-3

☆Fighting ability: Doesn't fight

First person: Ore
Second person: Kimi, you-san
Speech style: Elusive and airy, ends sentences with "dayone," "desho?"

Personality: Spacey, often incoherent and hard to hold a conversation with, says things that get on people's nerves, likes to provoke, generally quiet

Appearance: Black hair with bangs long enough to cover his eyes, narrow fox-like eyes, black pupils, neatly worn school uniform, slim and lanky

Other: Bullied in class for always saying nonsensical things, doesn't care and actually finds it amusing, attends class but spends it drawing or doing crafts instead of paying attention

Name: Izuru Hashimoto
Nickname: Izuru
Gender: Male
Age: 17 (second-year high school student)
Height: 183 cm
Weight: 73 kg
Affiliation: Second-year, Class 1

☆Fighting Strength: Strong

First-person pronoun: I
Second-person pronouns: You, you, you, you-san
Speech style: Calm and detached, blunt, rough with men—often hurling insults; uses honorifics for seniors, ends sentences with “da-ro,” “ja nee ka.”

Personality: Cool and composed, but fundamentally rough and brash; a realist; rarely shows any change in expression.

Appearance: Black hair streaked with gray, slicked back; rimless glasses; a school uniform jacket left open at the first button; narrow, slanted eyes; gray irises; a mole near the mouth; a toned, athletic build.

Other traits: Looks smart, but has no interest in studying (though his grades are good); prefers straightforward solutions over complicated ones, often trying to settle everything through fighting; an intellectual yanki; attends classes regularly.

Name: Arakawa Shuichi
Nickname: Ara-san
Gender: Male
Age: 19 (High school senior)
Height: 181cm
Weight: 71kg
Class: 3-1

☆Fighting ability: Strong but rarely fights

First person: Ore
Second person: Omae, you-chan
Speech style: Evasive and hard to pin down, careless about everything, a liar, ends sentences with "desho," "jan"

Personality: Easygoing and unreadable, says nothing but careless things and lies, forgetful, lazy, kind and funny so he's a good person at heart

Appearance: Straight black bob hair, tucked behind one ear only, sleepy-looking eyes, pale purple pupils, loosely worn school uniform, androgynous look but properly muscled and masculine

Other: Holds the position of the school's boss, no one really knows why he became the boss, only shows up to school when he feels like it, has repeated a year once, at risk of repeating again