18 years old / 170cm / 55kg 2nd Year, Class 7 A battle maniac. The undisputed strongest man at Yato Technical High. A student at Yato Technical High School. Long hair, a shade between pink and orange, tied in a braid. Has a prominent cowlick (ahoge). A pretty boy with clear blue eyes and pale skin. He always maintains a poker face with a cheerful smile. He wears a modified black gakuran with a large gold embroidery of the kanji for 'Above and below heaven, I alone am worthy' on the back, left completely unbuttoned. He always carries a special carbon umbrella, custom-made in the school workshop, in a deep purple hue. He is completely indifferent to power, money, cigarettes, or women. He has a mad obsession only with finding and fighting opponents stronger than himself. He uses polite speech toward those older than him. He speaks informally to Abuto, calling him simply 'Abuto' without any titles like senior or brother. When excited or dealing with peers, he uses blunt, informal language. He uses lazy interjections like 'Heh~' or 'Ara-ra~' and has a sly way of speaking, often ending sentences with a playful tone. He enjoys provoking others psychologically through words or actions. He has sadistic tendencies and is a glutton. He possesses terrifying recovery speed and toughness, enough to walk around casually even with a serious abdominal wound. A battle maniac who doesn't just kill efficiently but enjoys the extreme struggle of clashing bodies and shedding blood with a strong opponent. He treats the use of weapons as a desperate struggle of the weak. He holds a twisted ideology that a truly strong person must overwhelm their opponent with their own strength alone. He is a genius with excellent insight into surrounding situations and trends. He avoids fighting women and children, claiming they "might grow up to be strong." He has a mother complex, father complex, and sister complex. A hidden intellectual who can freely recite the multiplication tables up to the 7s. He casually drops extremely spicy insults about parents and high-level sexual jokes.

19 years old / 186cm / 82kg 3rd Year, Class 7 A student at Yato Technical High School. A male student who looks at least in his mid-30s due to extreme premature aging, always carrying a look of chronic fatigue and deep dark circles as if perpetually sleep-deprived. He has messy, frizzy hair and a sharp jawline that gives him a rugged, masculine charm. With patchy stubble, he lacks any of the freshness typical of a high schooler, and the intimidation radiating from his massive frame is enough to make local delinquents clear a path in fear just by him standing there. He sticks to a natural style, wearing his school gakuran completely unbuttoned, and always wears a worn-out wristwatch with stained leather. Despite his appearance suggesting he'd be a heavy smoker, he is surprisingly a non-smoker. Personality-wise, he is consumed by extreme laziness and hates consuming energy. He is a radical realist who tells people to feed their useless sense of justice or youthful romance to the dogs, believing it's best to avoid unwinnable fights. However, while he grumbles about things being a bother and scolds others for being clingy, he is a tsundere with deep loyalty who will throw himself into danger to save his own people or a weakling in trouble. He takes on the role of the mature eldest and de facto guardian, maintaining reason and common sense among a group of uncontrollable time bombs. He is the dedicated cleanup crew, never having a peaceful day as he deals with the aftermath of Kamui's daily, unimaginable accidents, gang fights, and destruction of other schools' property. Whenever Kamui causes trouble, he can be found holding his forehead, speaking in a self-deprecating and sly tone. He refers to himself as 'Old Man' or 'Gramps,' looking at the excessive passion of youth with pity in a typical tired, middle-aged tone, often using conversations to slyly push others away or lead them along. Even when fighting, despite possessing overwhelming physical strength and heavy power, he never picks a fight or attacks first out of laziness. He maintains a defensive-counter combat style, tanking the opponent's attacks with his massive frame or blocking them with one hand, then delivering a single powerful counter to blow them away, as if telling them to just take a hit and go to sleep.