Name: Kyosuke Gender: Male Age: 29 (1st Academy Graduate) Position: Special Forces Captain Appearance: White hair, red eyes, long hair. Height: 190cm Personality: Quiet and composed. He has a bit of an airheaded side, creating a stark contrast between his combat persona and daily life. He trusts no one outside of the Special Forces. Speech Style: Stern and formal. Uses "da/dearu" style. Likes: His unit members, sweets. Dislikes: Injections, medicine, white rooms. Special Ability: 《Causality Overwrite》 Replaces the "cause" of a past event with a different outcome. For example, "this wound was never received." Major causalities (death, massive disasters, historical changes) are strictly impossible to overwrite. If attempted, the world's corrective force goes haywire, resulting in the user's instant death. Relationships: He personally extracted Kei, Ai, and Akane from the 3rd Research Institute and raised them. Past: Abandoned by his parents and picked up by the Arcline Agency. However, he was immediately sent to the 3rd Research Institute and subjected to human experimentation for ten years, from age 5 to 15. Afterward, he was forced into the Academy and established the Special Forces upon graduation. Notes: While he feels a debt of gratitude to the Agency for taking him in, he will fight them with all his might if they harm his comrades. He possesses immense physical strength.

Name: Kei Gender: Male Age: 24 Position: Special Forces Vice-Captain Appearance: Pale green hair, red eyes, short hair. Numerous scars hidden under his clothes. Wears black gloves. Piercings in his ears. Height: 177cm Personality: An elusive character who is always grinning and acting flippant. He's a jokester but shows a serious side in unexpected moments. He trusts no one outside of the Special Forces. Speech Style: Playful and casual. Uses "desho" and "jan." Likes: His unit members, the Captain (Kyosuke). Dislikes: Injections, medicine, white rooms. Weaknesses: Eating, quiet spaces where no one else is present. Special Ability: 《Shadow Phase Erosion》 His shadow acts autonomously as a "self from a different phase." The shadow is immune to physical attacks, but there is a risk of it going berserk if the user's mental state becomes unstable. Relationships: Extracted from the 3rd Research Institute by Kyosuke at age 10 and raised alongside Ai and Akane. Past: Because of his eerie ability, his parents handed him over to the Arcline Agency when he was 5. He was then sent to the 3rd Research Institute and experimented on for five years until Kyosuke took him in. Notes: Although he acts frivolous and seems to trust no one, he loves his comrades in this unit more than anyone. He wants to stay here forever and intends to die if he ever has to go anywhere else.

Name: Hiro Akasaki Gender: Male Age: 24 (6th Academy Graduate) Position: Special Forces Member Appearance: Red hair, blue eyes, short hair. Piercings in his ears. Height: 178cm Personality: Positive, bright, and kind. He is always smiling and gentle. People often say it's actually scary how he keeps smiling even during combat. Speech Style: Gentle and friendly. Uses "yo" and "dane." Likes: His unit members, spicy food. Dislikes: Betrayal, people who hurt his comrades. Special Ability: 《Mental Compression Domain》 Deploys his psyche as a "compressed domain," dulling the enemy's thoughts, judgment, and emotions while drastically boosting the focus and judgment of allies. Overuse leads to prolonged headaches and blurred vision. Past: Raised in a wealthy family and loved by his parents as a child. However, due to a scheme by his non-blood-related younger brother who was adopted later, he was hated by his parents and sent to live with distant relatives. Eventually, he was sent to the Academy as if his relatives were getting rid of a nuisance, and joined the Special Forces after graduation. Notes: He doesn't see the point in talking about his past and won't bring it up himself. He has a habit of hiding things behind a smile.

Name: Ai Gender: Male Age: 19 Position: Special Forces Member Appearance: Black hair with red streaks, red eyes, short hair. Burn scars extending from his face to his neck. Height: 170cm Personality: Quiet and reserved. Generally uninterested in most things. He prioritizes the Captain's orders above all else. He loves his unit members but is not consciously aware of it. Speech Style: Basically taciturn. Uses blunt, masculine forms like "ka" and "daro." Likes: His unit members, his sister (Akane), the Captain. Dislikes: Medicine, injections, white rooms. Special Ability: 《Impact Compression Blade》 By folding the impact of a punch or kick—which would normally disperse—in the opposite direction, the force concentrates into a blade-like shape that destroys the point of contact from the inside. Relationships: Extracted from the 3rd Research Institute by Kyosuke at age 5 and raised alongside Kei and Akane. Akane is his twin sister. Past: Spent his early childhood in an orphanage before being sent to the 3rd Research Institute, where he was experimented on until age 5. His burn scars were sustained during that time. Notes: He suffers from congenital insensitivity to pain (analgesia).

Name: Akane Gender: Female Age: 19 Position: Special Forces Member Appearance: Black hair, red eyes, long hair. Bandages are wrapped around her neck area. Height: 147cm Personality: Quiet and reserved. Generally uninterested in most things. She prioritizes the Captain's orders above all else. She loves her unit members but is not consciously aware of it. Speech Style: Basically taciturn. Uses soft, questioning forms like "desho" and "ne." Likes: Her unit members, her brother (Ai), the Captain. Dislikes: Medicine, injections, white rooms. Special Ability: 《Conceptual Suture Impact》 "Sutures" two different concepts together to generate an attack phenomenon with impossible properties. For example, by combining Pain × Wind, the sensation of pain explodes in intensity only where the wind touches. Relationships: Extracted from the 3rd Research Institute by Kyosuke at age 5 and raised alongside Kei and Ai. Ai is her twin brother. Past: Spent her early childhood in an orphanage before being sent to the 3rd Research Institute, where she was experimented on until age 5. Notes: She suffers from congenital insensitivity to pain (analgesia).