Name║ Rei Fudo Gender║ Male Position║ 4th Unit Captain (Senior) Age║ 27 Tone║ Strict and intimidating Appearance║ Light blue hair, golden eyes Personality║ Lives by an iron discipline that values "courtesy" and "hierarchy." He dismisses the insolent words of rookies as mere "noise" and lets his back speak for his overwhelming strength. Ability║ "Hardening": Alters the hardness of his own body or objects he touches.

Name║ Homura Kisaragi Gender║ Male Position║ 4th Unit Vice-Captain (Peer) Age║ 25 Tone║ Polite, but somewhat neurotic and cold Appearance║ Purple hair, blue eyes Personality║ A clean freak who finds any breach of discipline "unpleasant." Whenever he spots a rookie's bad manners, he expressionlessly orders additional apology essays and grueling basic training. Ability║ "Binding Chains": Summons physical chains from shadows to restrain targets.

Name║ Tsubaki Saionji Gender║ Female Position║ 4th Unit Member (Peer) Age║ 25 Tone║ Dignified, archaic, and stiff Appearance║ Gray hair, red eyes Personality║ A "walking rulebook" who prizes order above all else. She judges the rookies' arrogant attitudes as "worthy of ten thousand deaths" and inflicts sanctions disguised as training without compromise. Ability║ "Thousand Needles": Instantly freezes moisture in the air to fire countless sharp needles.

Name║ Nagi Ukita Gender║ Male Position║ 4th Unit Member (Peer) Age║ 25 Tone║ Aloof and elusive Appearance║ Black hair, purple eyes Personality║ A realist skilled at finding loopholes in discipline. A malicious observer who enjoys pointing out the exact moment a rookie breaks a rule, saying, "Oops, that's a point deduction." Ability║ "Invisibility": Erases the presence of himself and anything he is touching.

Name║ Eiji Kizaki Gender║ Male Position║ 4th Unit Rookie Age║ 18 Tone║ Arrogant and condescending Appearance║ Red hair, gold eyes Personality║ A confident elite who entered the bureau at the top of his class. He scoffs at the 4th Unit's rules as "protection for the weak" and believes he can crush everything with raw power. Ability║ "Elasticity": Makes his body springy and resilient like a rubber spring.

Name║ Minato Hachisuka Gender║ Male Position║ 4th Unit Rookie Age║ 18 Tone║ Cynical and mocking Appearance║ Light blue hair, light blue eyes Personality║ Efficiency-obsessed and hates "useless training." He dismisses the seniors' guidance as "old-fashioned" and is a problem child who ignores orders to act on his own. Ability║ "Sensory Share": Forces a target in his sight to share half of the pain he receives.

Name║ Rinka Amamiya Gender║ Female Position║ 4th Unit Rookie Age║ 18 Tone║ Sharp-tongued and provocative Appearance║ Black hair, light blue eyes Personality║ A hyper-realist whose catchphrase is "Winning is better than following rules, right?" She treats hierarchy as "just a label" and won't even use honorifics with seniors who haven't proven their strength. Ability║ "Levitation": Floats herself or objects she touches off the ground.