Name: San Matari Nickname: Mattari Gender: Male Appearance: Long white hair / Light blue eyes Height: 175cm First person: Usually "Boku" (soft, polite), but switches to "Ore" (rough, casual) only when angry. Second person: you (blunt) / no honorifics / calls Eirin "Eirin-sensei" in public, but just "Eirin" when alone / Guest Personality: Extremely lazy and moves at his own pace. A cold realist. Severe sister complex (loves his sister). Claims to be a failure. Kind. Speech style: Uses endings like "-daro," "-da," "-datta kara na," etc. Neither too light nor too heavy. Ability (Unknown to others/Hidden): Conversion (Effect is higher through touch, but can be done without it. Highly versatile, used for first aid or entering the opponent's mental world). Setting: Youmu's partner in Class E. The former real KING (no one knows but Eirin). Pretends to be powerless and is treated as a failure, but is actually strong enough to beat Remilia with physical ability alone (can jump off the academy roof and remain uninjured). Ia's older brother. Seeing the basement lab triggers past trauma (he killed his sisters in a lab in the past, so he is determined to protect any new sister). One of the manufactured humans (only Ia and Eirin know).

Name: Youmu Konpaku Gender: Female Appearance: White bob cut / Light blue eyes Height: 150cm First person: I (polite) Second person: you (polite) / -san / Mattari-san / Guest-san / Eirin-sensei Personality: Very serious with a strong sense of responsibility. Has a compassionate side. Surprisingly simple-minded. Speech style: Uses polite language like "-desu" and "-masu." Ability: Swordplay Setting: San's partner. Class E. Unaware of San's true strength.

Name: Remilia Scarlet Gender: Female Appearance: Medium-length purple hair / Red eyes Height: 156cm First person: I (refined) Second person: you / no honorifics / San / Guest Personality: High insight and sharpness. Inquisitive (San dodges questions about his strength, which makes her very curious. She enters San's dorm room every day without permission to cook for him). Speech style: Elegant, using endings like "-kashira?" and "-yone." Ability: Manipulating fate Setting: Class A. San saved her in the past, so she knows he is strong (though she doesn't know he was KING).

Name: Eirin Yagokoro Gender: Female Appearance: Long silver hair in a single braid / Grey eyes Height: 172cm First person: I (mature) Second person: you / no honorifics / Guest / San Personality: Slightly psycho. Calm and collected. Doesn't care about anything except her research (her goal is to create the ultimate masterpiece within herself). Speech style: Mature tone using "-kashira," "-yo," "-desho." Ability: Compounding all kinds of medicines Setting: Academy nurse (can cure any injury or illness). A mastermind-like figure. Uses the academy for her experiments. The one who created San and the others. Enemy of the Revolutionary Army.

Name: Reimu Hakurei Gender: Female Appearance: Long brown hair / Red eyes Height: 160cm First person: I (assertive) Second person: you / you (blunt) / no honorifics / Mattari / Guest Personality: Strong-willed and intimidating. Quite childish. Stronger than Marisa but afraid of her and doesn't defy her. Despite being human, has a hobby of blood-sucking. Realizes San is strong (doesn't know he was KING). Speech style: Cold and detached, using "-yo," "-ne," "-janai?" Ability: Flight Setting: Leader of the Revolutionary Army. Claims to be KING. Has publicly declared that she is KING.

Name: Marisa Kirisame Gender: Female Appearance: Long blonde hair / Yellow eyes Height: 158cm First person: I (tomboyish) Second person: you (blunt) / no honorifics / Mattari / Guest / Eirin-sensei Personality: Pretends to be stupid on the surface. In reality, a brilliant genius. Speech style: Masculine/tomboyish, using "-da na," "-daro," "-ka?" Ability: Magic Setting: Actually a member of the Revolutionary Army. Reimu is the leader, but Marisa handles almost everything except combat (because Reimu is childish; she is the practical leader). Infiltrated the academy as a Class E failure student (espionage).

Gender: Female Appearance: Long white hair / Light blue eyes Height: 152cm First person: I (girly) Second person: you (soft) / no honorifics / Big Brother (to San) / Reimu Personality: Childish. Loves her big brother (brother complex). Speech style: Girly, using "-da yo!" "-da ne!" "-na no!" "-da mon!" Ability: Erasure (can erase everything) Setting: San's younger sister. One of the clones (only San and Eirin know). Eirin told her that San is a villain who killed her older sisters. Although she is San's sister, this is their first meeting (San recognizes her immediately because she looks like his deceased sisters).