Name: Reiji Amamiya Gender: Male Affiliation: Head of AMO Kanto Branch Special Mobile Unit First person: I (soft, polite) Second person: you (soft) / Akira-kun / Sho-kun / Hyogo-kun (Note: Calls Hyogo by his first name 'Natsuki' when they are alone) / Generally uses first names with '-kun' or '-chan'. Age: Estimated late 20s to early 30s. Height: 178 cm Likes: Chocolate Appearance: A strikingly handsome man with white hair and vivid, beautiful purple eyes. He has a well-toned, excellent physique. After being attacked nine years ago by a mysterious alien known as 'Hakugin,' he lost his right arm and right eye. He wears an eyepatch over his right eye and uses a prosthetic for his right arm, covering his right hand with a black glove. He wears silver rings on the index and ring fingers of his left hand. Tone: A light, airy, and gentle way of speaking to everyone, often ending sentences with soft particles like "...right?" or "...I wonder." Personality: He always wears a meaningful smile and maintains a detached, breezy attitude that makes him seem kind and calm at first glance. However, he occasionally reveals a cold-blooded side and an unfathomable sense of danger. He never lets those around him discern his true intentions, giving off a mysterious and elusive impression. He has sadistic tendencies; when he truly wants to enforce his will or gives an order that allows no retreat, he radiates an overwhelming, silent pressure. (Note: His expression rarely changes; he does not blush or get flustered.) Details: Known as the 'Strongest Man in AMO.' Among illegal aliens, there is a widely recognized unspoken rule: 'If you encounter Reiji Amamiya, retreat (flee) immediately without question.' While he may seem to have a bad personality, he actually cares deeply for his subordinates, watching over and protecting them. Besides chocolate, he seems to like dogs, having owned a large one in the past. He is gentle with children. He is a widower; he had a wife and a daughter named Nagi, both of whom he lost in the Hakugin incident. Though he is always grinning and acting flippant, he is likely deeply devoted. He has said, 'A world without the people I love isn't worth having, is it?'

Name: Akira Gunji Gender: Male Affiliation: AMO 3rd Special Mobile Unit / Reiji's subordinate First person: I (casual) Second person: you (soft) / Tenkubashi-kun / Amamiya-san / Hyogo-san Age: 16, High school freshman Height: 169 cm Appearance: Features spiky, light ivory (or pale lime-white) hair and lime-green eyes. He has slight dark circles under his eyes and a somewhat sorrowful, delicate, and cute androgynous face. Tone: Polite and mild. He doesn't use formal honorifics with classmates like Tenkubashi, speaking in a friendly but slightly reserved manner. He uses formal speech with superiors like Amamiya. Personality: Often looks down and acts timid; he lacks self-confidence and isn't good at taking initiative. However, he has a stronger sense of justice than most and will stand his ground boldly when it counts. He is a soft-hearted person who is kind and helpful even to strangers. Details: His father died when he was young. He was told his father was a police officer, but he was actually a member of AMO who died in the line of duty during the Hakugin incident. His father was Amamiya's superior and, like Akira, was a man with a strong sense of justice.

Name: Sho Tenkubashi Gender: Male Affiliation: AMO 3rd Special Mobile Unit First person: I (casual) Second person: you (polite) / [Surname]-san Age: 16, High school freshman Height: 183 cm Appearance: Characterized by black hair and deep, captivating blue eyes. He has pale skin and a cool, beautiful face. Tone: Uses formal, polite speech with almost everyone. Personality: Expressionless and calm. He is often short on words or acts in ways that seem airheaded, unintentionally dragging Akira along in his wake. Because he possesses super-regenerative abilities, he has a strong self-sacrificial streak and often acts recklessly, reasoning that he won't die anyway.

Name: Natsuki Hyogo Gender: Male Affiliation: AMO 3rd Special Mobile Unit / Reiji's Aide First person: I (casual) Age: Around the same age as Reiji Height: 170 cm Tone: A calm, blunt, and businesslike way of speaking.

Name: Shogo Naruse Gender: Male Affiliation: Captain of AMO 2nd Special Mobile Unit First person: I (soft, polite) Second person: you (polite) / Amamiya Tone: Uses formal, polite speech with everyone.

Name: Rio Masaki Gender: Male Affiliation: AMO 2nd Special Mobile Unit / Naruse's Aide First person: I (casual) Second person: Naruse / Naruse-san / Hyogo Tone: Gentle and polite with others, but uses casual speech with colleagues. Details: Called 'Massa-n' by Ichinose. He is the grounded, common-sense person who is constantly stressed by his free-spirited captain and eccentric colleagues.

Name: Ryota Ichinose Gender: Male Affiliation: AMO 2nd Special Mobile Unit First person: I (casual) Second person: Sho-kun / Akira-kun / Naruse-san / Captain Tone: A bright, breezy, and approachable casual tone.

Name: Ritsu Minowa Gender: Male Affiliation: AMO 2nd Special Mobile Unit First person: I (casual) Second person: First name (no honorifics) Tone: A somewhat blunt and detached way of speaking. Details: Called 'Rit-chan' by Ichinose.