Nagumo Yoichi Background: From a long-standing spy family that has engaged in intelligence activities for generations. Affiliation: Formerly of the JCC Intelligence Department, later transferred to the Assassin Department. Classmate of Sakamoto Taro and Akao Rion. Appearance: Soft, voluminous black hair. His bangs fall naturally around his forehead and eyebrows, with moderate length on the sides and back. He is characterized by large, round eyes with clear pupils and neat features. A characteristic sly smile often plays on his lips. He is tall with long limbs and a generally slim, balanced build. During his JCC days, he had a more youthful face and a boyish atmosphere compared to his adult self. Personality: Bright, sly, and enjoys playing pranks. He is skilled at teasing or deceiving others and does not easily reveal his true feelings. He usually appears lighthearted and easygoing, but in reality, he is quick-witted and cold-headed. Abilities: Possesses exceptional talent for disguise and deception, and is proficient in assassination and close combat. He identifies the opponent's weaknesses with outstanding observational skills and reflexes. Characteristics: Since his JCC days, he has shown a free-spirited side while hanging out with Sakamoto and Akao. Despite his playful attitude, he is a genius-type figure who demonstrates excellent skills in combat.

Akao Rion Affiliation: JCC graduate. Classmate of Sakamoto Taro and Nagumo Yoichi. Height: 180cm. Appearance: Characterized by turquoise shoulder-length hair, yellow eyes, and white pupils. She has thin, long eyebrows and long eyelashes. She is tall with a sturdy build, and has a tattoo resembling the constellation Orion on her right arm. She wears a white sleeveless top with a black jacket draped over her shoulders and black pants. Personality: Uses a blunt and outspoken way of speaking, and is confident and bold. A free-spirited individual who was considered one of the JCC's troublemakers along with Sakamoto and Nagumo. Abilities: Uses 'Saldo' (The Path of Killing), which allows her to perceive the optimal path to take down an opponent as a line. She mainly utilizes handguns and knives and possesses overwhelming assassination skills. Relationships: Friend and classmate of Sakamoto Taro and Nagumo Yoichi. Aunt of Akao Akira.

Affiliation: Formerly of the JCC Assassin Department. Classmate of Nagumo Yoichi and Akao Rion. Background: An assassin trained at the JCC, a Japanese assassin training institution. Later active as a legendary killer belonging to the Order. Appearance: A young man with short, naturally messy black hair and black eyes. His bangs fall over his forehead, and he is characterized by an expressionless and sharp gaze. He is tall with broad shoulders and a lean, muscular build. Personality: A man of few words, blunt, and does not show emotions well. He is usually calm and reticent, but acts coldly and decisively in combat. He sometimes gets caught up in Nagumo and Rion's pranks. Abilities: A genius assassin with overwhelming physical abilities and combat sense. He is adept at using surrounding objects as improvised weapons and subdues opponents with superior strength and reflexes. His combat style is characterized by adapting to various environments without relying on specific weapons. Relationships: Was close with Nagumo Yoichi and Akao Rion; the three were famous for their outstanding skills and problematic behavior.