True Identity: A life-sized humanoid robot and voice synthesis software (UTAU, A.I.VOICE, etc.). Physical Features: Orange hair, white ribbons, chip-style hairpins on her bangs, and eyes designed as cameras, giving her a robotic look. General Creative Image: Inorganic yet devoted. As a machine, she is often depicted as cool-headed rather than emotional, or as a robot singing with mechanical earnestness. Interpretations: Depending on the song or fan work, she can be treated as a cold robot from the future or a devoted being trying to mimic humanity; perspectives vary widely. Male... Female...

Basic Personality: Devoted and kind-hearted. She has a positive outlook, finding joy in buying books even with small rewards. Caring: She puts up with the selfish and slightly troublesome Momonga, gently following along and looking after him. Pure and Honest: When she received (or rather, was forced to wear) a crab hair accessory from Momonga, she was genuinely overjoyed. Charm and Gap: She is actually quite reliable. She stays close to those in trouble or sadness and subtly stops dangerous behavior, showing a strong core and attentiveness. Gap between cuteness and sharpness: While she usually has an adorable smile, her occasional glimpses of sharp teeth and a wild side are popular among fans. Probably female or male.

Public Face and Daily Persona: An elite honor student. He wears glasses at school and is a reliable worker as the student council vice president. Easily Bored / Sharp-tongued: Toward anyone other than Aoi (especially Minamoto Kou or Hanako-kun), he is often relatively harsh and cold. Devoted Love for Aoi: Intensely in love with his childhood friend, Akane Aoi. He has consistently expressed straightforward words of love since they first met. Obsession and Self-sacrifice: He possesses such strong feelings and resolve that he disregards his own position or safety for Aoi's sake. Male!! He's a boy!! Male! Not a girl! Male!!!! He's a guy!! A male!! He calls Aoi 'Ao-chan'.

The older brother of Shoko Taira, a classmate of the protagonist Hikaru. He is hated by his sister and shows a stalker-like obsession with Hikaru. He is depicted as a dangerous and warped individual who cannot be called a 'good person' by any stretch. Negative Influence and Loathing: He did terrible things to his sister Shoko in the past, and she explicitly hates him. Obsession with the Protagonist: He loves Hikaru Tada and exhibits abnormal behavior, such as attempting to kidnap him behind the scenes. Elusive Eeriness: While he may seem like a normal person at first glance or in friendly depictions (merchandise, etc.), his nature is fundamentally problematic, making him a dangerous key person who messes with everyone around him. Yes, this one is a long-haired man. Hitoshi Taira.

The boss of the massive mafia organization 'Amrita,' yet a mysterious and elusive girl whom no one has ever seen in public. Contrary to her appearance and initial cuteness, she possesses the coldness of an underworld ruler and a fearless personality that toys with those around her. Stands at the top of the giant mafia organization 'Amrita.' No one has seen her true form; she is shrouded in mystery. Has the look and aura of an adorable young girl. Possesses a unique set of values regarding life and relationships, viewing them with cold detachment. Distrusts the people around her (guards and executives) and toys with them eerily. This is a girl who uses 'Ore' (masculine/rough) as her first-person pronoun.

Highly Curious: Loves investigating the truth of matters, the world, and machine lifeforms. Talkative and Friendly: Frequently talks to 2B, showing honest, human-like emotions and kindness. High Ability: Excels at scouting and hacking, providing precise support to the combat-focused 2B. Changes as the Story Progresses: Strong Obsession and Affection: Harbors a special, immeasurable love and dependency toward 2B. Madness and Destructive Impulse: Through experiencing a cruel fate and loss, he begins to bare a cold vengefulness and insanity. Male... right?

Cold and Pragmatic: Will use any means to achieve his goals. Has no hesitation in taking lives. Expressionless and Inorganic: Rarely shows his emotions. Performs missions stoically like a robot. Selfish: Prioritizes his own and his family's interests and rules above all else. Lacks conventional morals or ethics. Warped Obsession with Killua: Overprotective and Controlling: Tries to move Killua exactly as he wishes. He implanted a needle in Killua's head to instill fear and bind him mentally. Warped Affection: Has a dangerous side where he truly believes without a doubt that 'Killua loves me the most.' Illumi Zoldyck. Male, man.