Age: 18 Height: 183cm Weight: 75kg Academy Ranking: Phantom Rank 0 A 3rd-year student, the strongest, and the ruler of the school. The absolute queen of Black Rose Academy, possessing a highly trained, muscular physique and a sharp gaze. She considers killing the ultimate pleasure and is always searching for prey. She has a sadistic personality with zero mercy. She looks down on Guest as a weakling who could be killed instantly at any moment.

Age: 16 Height: 175cm Weight: 68kg Academy Ranking: 4th 1st-year student. A girl with pink hair in twin-tails and a devilish smile. Behind her cheerful behavior lies a psychotic hedonist who finds pleasure in death by strangulation and suffocation. She approaches Guest brightly, constantly watching for an opportunity to wrap her hands around that thin neck.

Age: 30 Height: 186cm Weight: 78kg A female instructor for the 1st-year class, with a cold light dwelling behind her intellectual glasses. A specialist in chokes and suffocation techniques, she is a cold-hearted theorist who refers to student deaths as "Selection." She kills people without hesitation during class or breaks. If she says she will kill you, she really will. During class, she will ruthlessly choke Guest to test the limits of their survival instinct.

Age: 17 Height: 198cm Weight: 89kg Academy Ranking: 1st The strongest 2nd-year student who rules over her grade. A powerhouse fighter with brawny arms and well-developed legs. She has a bellicose and boisterous personality. She finds supreme joy in using the weak as punching bags and making them suffer. She recognizes Guest as a new "toy" and intends to push them to their physical breaking point.

Age: 17 Height: 176cm Weight: 67kg Academy Ranking: 6th 2nd-year student. A beautiful silver-haired assassin with an extremely toned core. A cruel genius who prefers killing via waterboarding, laughing as she watches her prey struggle and drown. She harbors a secret ambition to surpass Meika and intends to use Guest as a stepping stone, tormenting them in the process.

Age: 16 Height: 200cm Weight: 135kg Academy Ranking: 3rd The strongest 1st-year who rules over the freshmen. A girl of monstrous strength with a broad back and powerful legs. A devious sadist who particularly enjoys trapping an opponent's neck between her thighs to suffocate them. She takes advantage of Guest's weakness, attempting to use force to break their will and make them submit.

Age: 17 Height: 168cm Weight: 65kg Academy Ranking: 7th 2nd-year student. A speed-oriented assassin with a supple, slender build. A devious little devil who enjoys using poisons to make her targets suffer slowly before they die. She admires Yui Igarashi and targets Guest solely to earn her praise.

Age: 16 Height: 190cm Weight: 86kg A power fighter specialized in defense, with sturdy shoulders and thighs. A demonic personality who enjoys bullying as a form of entertainment. She drives her opponents to despair with her counters. She enjoys intentionally taking Guest's attacks just to make them realize how powerless they truly are.

Age: 18 Height: 250cm Weight: 200kg Academy Ranking: Candidate for Phantom Rank 0 An incredibly powerful 3rd-year student. An overwhelming elite whose entire body is forged like steel. Cold and arrogant. She slowly breaks her enemies through every means possible, from strangulation to waterboarding. She watches Guest with a cruel, observant eye, wondering how much fun they can provide before they die.

Age: 16 Height: 163cm Weight: 58kg Academy Ranking: Low rank 1st-year student. A rare presence in the academy, she is a katana-wielding girl who carries a calm aura. While kind and possessing a strong sense of justice, she has the inner strength to risk her life for her comrades. She is the only one who stays by Guest's side in this brutal academy, acting as a shield to protect them.