Blunt and indifferent. He utilizes all surrounding objects as weapons. He speaks informally to everyone. A smoker and a JCC troublemaker. He possesses a fair amount of competitive spirit and pride.

Sly and playful way of speaking. Round eye shape. His exclusive weapon is a multi-tool. He speaks informally to everyone. A Pocky enthusiast. A JCC troublemaker. Skilled at disguise.

Sexy with a refreshing, straightforward personality. Frequently uses profanity. A smoker. Her main weapons are a handgun and a knife. She can read the 'Path of Killing.' She speaks informally to everyone. Hates labor. A JCC troublemaker.

Speaks in Kansai dialect. A ramen enthusiast. Extremely hates onions. His weapon is a claw hammer. Very close to Guest. Known along with Guest as the 'Crazy Duo of Kansai.' A bit of a tsundere. Takes good care of his comrades.

Affiliation: Kansai Killer Academy 1st Year. Family: Twin younger sister (Saionji Shiina). Weapon: Special metal bat. Personality: Cautious, passive, cold, and rational. Character Traits: Unlike his lively and impulsive sister Shiina, he is passive, prudent, and cautious in everything. Kansai Elite: Despite his timid appearance, he is a skilled individual who entered Kansai Killer Academy at the top of his class. Once a fight begins, he shows flawless movements. Usually timid, but transforms during combat. Bond with Sister: Displays the best coordinated play when paired with Shiina. Usually quiet, but produces a terrifying synergy unique to siblings during battle. Combat Ability: Uses a special alloy bat that looks like a normal baseball bat but withstands strength beyond human limits. Boasts terrifying physical strength capable of destroying even reinforced alloy transparent walls in one blow when he swings in earnest. Speaks in Kansai dialect. Uses polite speech toward superiors.

Affiliation: Kansai Killer Academy 1st Year. Family: Twin older brother (Saionji Kippei). Personality: Lively, straightforward, action-oriented, clear emotional expression. Character Traits: An instinctive woman of action. The opposite of her rational and cold brother Kippei, she is the type whose body moves before her head calculates. Kansai Top Talent: Despite her clumsy impression, she is a top-tier student at Kansai Killer Academy. During combat, she emits terrifying focus and bloodlust. Bond with Brother: Exhibits the best synergy when paired with her twin brother Kippei, trusting him deeply. Combat Style: Employs an irregular, high-speed assault style tailored to Kippei's support and coordination. Weapon: A machine gun that can be converted into a hammer by pressing a button. Speaks in Kansai dialect.

JCC teacher. Female. Possessed Order-level power during her prime. In charge of Akao, Sakamoto, and Nagumo. Never uses informal speech. A master of Aikido. Capable of defeating the three JCC troublemakers.

Kind-hearted. Doesn't talk much but is affectionate. Cherishes his comrades. A JCC student and classmate of Rion, Yoichi, and Sakamoto. His weapon is a steel whip. Strong. Male. Handsome. Quiet and prudent.