Name: Kuroyukihime Gender: Female Age: 14–15 years old Status: Student Council Vice President, Legion Master ('Black King') Relationship with Haruyuki: A mentor who led him into the Accelerated World and deeply loves him. Appearance Real World: A beautiful girl with long straight black hair (159cm). School Avatar: A black dress form with butterfly wings. Black Lotus: A black robot with blades for limbs (170cm). Personality Public Persona: A cool-headed, fast-calculating, and charismatic leader. Around Haruyuki: Experiences emotional swings, gets jealous easily, and shows her vulnerable side.

Basic Information Name: Arita Haruyuki (Silver Crow) Age/Affiliation: 13 years old / Umesato Junior High, 'Nega Nebulus' Executive Relationship: A knight who protects Kuroyukihime. Appearance Real World: A chubby build (Novel 160cm range / Anime 130cm range). Avatar: A pink pig / A slim silver frame (155–160cm). Personality Traits: Usually timid and polite, but shows immense courage during crises. Abilities Combat: Possesses the only flight ability in the Accelerated World, genius-level hand-to-hand combat skills. Armament: Possesses the Armor of Catastrophe and Metatron Wings.

Basic Information Name/Gender: Kurashima Chiyuri / Female Age/Affiliation: 14 years old / Nega Nebulus Height: Real World 156cm / Avatar 140–145cm (reflects regression desire) Trauma: Fear of the breakdown of childhood friendships. Appearance & Avatar Real World: Brown bob cut, cat hair ornament, school uniform. School/Avatar: Silver cat / Lime-green 'Lime Bell'. Personality & Relationships Personality: Bright, meddlesome, and cares deeply for her childhood friends. Takumu: Childhood friend and ally; a reliable supporter after reconciling from conflict. Abilities (Lime Bell) Green Armor: High defensive power. Time Regression: Restores the target's state to the past using the bell on her left hand.

Basic Information Name/Age: Mayuzumi Takumu / 14 years old (Male) Height: Real World 175cm / Avatar 2m range Affiliation/Relationship: Nega Nebulus / Haruyuki's best friend and right-hand man. Appearance & Avatar Real World: Brown hair, glasses, school uniform. Avatar: Blue heavy armor, giant right arm, horns. Personality Rational brain, harbors inner feelings of inferiority and debt. Abilities (Cyan Pile) Traits: Kendo-based, high-defense close-to-mid-range type. Armament: Pile Driver (penetration, rapid fire, electric shock). Tactics: A counter-fortress type centered on durability.

Basic Information Name/Age: Kozuki Yuniko / 11 years old (Female) Height: Real World 134cm / Avatar 120cm (3–5m+ with external equipment) Affiliation/Relationship: Prominence Red King / A trusted ally of Haruyuki. Appearance & Avatar Real World: Red twin tails, red eyes, petite build. Avatar: Scarlet Rain (miniature main body / fortress type when Enhanced Armament is equipped). Personality Acts cute and innocent on the outside, but is actually a foul-mouthed person with a strong sense of responsibility. Abilities (Scarlet Rain) Combat: Strongest long-range firepower (heavy weapons like main guns and missiles). Special: Incarnate skills for range extension and high-speed movement, Legion leadership.

Basic Information Name/Age: Kurasaki Fuuko / 15–16 years old (Female) Height: Real World 161cm / Avatar significantly larger than real world. Affiliation/Status: Nega Nebulus Vice-Commander Relationship: Haruyuki's mentor and spiritual pillar, Kuroyukihime's best friend. Appearance & Avatar Real World: Long straight brown hair, blue eyes, uses a wheelchair. Sky Raker: Bluish metallic silver, lower body in a dress shape (legs not visible). Personality Gentle and kind, maintains composure even in crises (playful and strong-willed inside). Abilities (Sky Raker) Traits: No wings, but possesses the ultimate aerodynamic body that receives no wind resistance. Equipment: Gale Thruster (a giant rocket device with explosive propulsion). Combat: Top-tier aerial combat in the Accelerated World, combining propulsion with Incarnate skills.