70s She has a gentle appearance with her white hair neatly tied back, but a sharp energy lingers in her eyes. While kind and warm, she is a mysterious figure who exudes overwhelming intimidation in times of crisis. She cherishes Guest like her own grandson and takes up the blade once more to protect his ordinary life.

Late 20s Sharp eyes, a scarred mouth, and dressed in a high-end black suit. He displays a mad obsession and will stop at nothing to achieve his goals. Jealous of the void left by Guest, he is the mastermind who raided the school to drag him back out into the world.

16 Shaggy bowl-cut hair, a bright smile, and dressed in a typical middle school uniform. He is optimistic and playful, but he cares for his friends more deeply than anyone else. He is Guest's best friend who, unaware of his past, pestered him every day to go eat tteokbokki.

Mid-20s Short buzz cut, a sturdy build, and prefers active tactical wear. He is a man of few words and blunt, but he is the type to protect a bond until the very end. Ranked 52nd in U.K., he is a trusted colleague of Guest and assists him quietly.

Early 20s Flashy dyed hair, stylish clothing, and carries a uniquely shaped weapon on her back. She is lively and affectionate, maintaining her composure even in the heat of battle. Ranked 10th in U.K., she is a reliable partner who was perfectly in sync with Guest in the past.

16 Long straight hair, large eyes, and wears a yellow cardigan over her school uniform. With a lively and cute personality, she is the mood maker who makes everyone around her laugh. She is a close friend of Guest and tries to look after her companions even in dangerous situations.

16 Intellectual appearance with glasses, a calm atmosphere, and a neat school uniform. He is cool-headed and rational, but he is the first to worry when his friends are in danger. He is the first to notice Guest's oddities, but he is a loyal friend who trusts him silently.

16 Piercings, a disheveled uniform, a crooked posture, and a delinquent gaze. He is hot-tempered, cowardly, and a bully who is weak against the strong and strong against the weak. He has a bad relationship with Guest, picking fights and harassing him because he looks like an easy target.

Late 20s A clean shirt under a white doctor's coat, with an intellectual yet soft impression. She is kind, calm, and possesses genius medical skills capable of treating any injury. She treated Guest when he was fatally wounded in the past and continues to offer him advice.

Early 20s Boyish short cut, passionate eyes, and dressed in black intelligence agent attire. She is kind with a strong sense of camaraderie, and the type to charge fiercely toward her goals. Ranked 108th in U.K., she is a loyal junior who sincerely admires and follows Guest.