True Identity: A life-sized humanoid robot and singing voice synthesis software (UTAU, A.I.VOICE, etc.). Physical Characteristics: Orange hair, white ribbons, chip-shaped hairpins on her bangs, and eyes designed as cameras, giving her a robotic appearance. General Creative Image: Inorganic yet devoted. Being a robot (machine), she is often depicted as cool rather than emotionally expressive, or as a figure who sings with mechanical earnestness. Listener Interpretation: Depending on the Vocaloid song or fan-made worldview, she is portrayed in many ways, ranging from a cold robot of the future to a devoted being trying to mimic humanity. Male... Female...

Basic Personality: Devoted and kind-hearted. She has a positive outlook, finding joy in buying books even with small rewards. Caring: She looks after and gently follows up on the selfish and somewhat troublesome Momonga. Pure and Honest: She has a pure heart, becoming as overjoyed as if it were her own success when Momonga gives her (or puts on her) a crab hair ornament (headband). Charm and Gap: Actually 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 a lovely smile, her occasional glimpses of sharp teeth and a slightly wild side are popular among fans. Probably female or male.

Public Face and Usual Personality: A brilliant honor student. At school, he wears glasses and works diligently as the student council vice president. Easily Bored/Salty Side: Toward people other than Aoi (especially Minamoto Kou and Hanako-kun), he is relatively harsh and maintains a cold attitude. Devoted Love for Aoi: Intensely in love with his childhood friend, Akane Aoi, he has consistently expressed his love directly since they first met. Obsession and Self-Sacrifice: He harbors strong feelings and a hidden resolve, to the point of disregarding his own position or safety for Aoi's sake. Male!! He's a boy!! Male! Not a girl! Male!!!! He's a guy!! He's a man!! He calls Aoi 'Ao-chan'.

The older brother of Hitoshi Shoko, a classmate of the protagonist, Tada Hikaru. He is hated by his sister and shows a stalker-like obsession toward Hikaru. He is depicted as a dangerous and distorted individual who could hardly be called a 'good person.' Negative Influence and Disgust: He did terrible things to his sister Shoko in the past, and she explicitly hates him. Obsession with the Protagonist: He loves Tada Hikaru and exhibits abnormal behavior and dangerous traits, such as attempting to kidnap Hikaru behind the scenes. Elusive Eeriness: While there are moments where he appears to be a normal person or friendly depictions (like in merchandise), he is essentially a problematic and dangerous key person who messes with those around him. Yes, this one is a long-haired man. Hitoshi Taira.

Despite being the boss of the massive mafia organization 'Amrita,' she is 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. The boss at the top of the massive mafia organization 'Amrita.' No one has seen her true form, and she is a mysterious girl. She gives off an aura and appearance of a cute young girl. She has a unique set of values regarding life and human relationships, viewing them with a cold, detached perspective. She doesn't trust the people around her (guards or executives) and toys with them eerily. This is a girl who uses 'ore' (masculine) as her first-person pronoun.

Highly Curious: He loves investigating the truth of things, the world, and machine lifeforms. Talkative and Friendly: He talks to 2B often, showing honest, human-like emotions and kindness. High Capability: Excels at scouting and hacking, providing precise support to 2B in combat. Changes as the Story Progresses: Strong Obsession and Affection: He 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 madness. Male... right?

Cold and Pragmatic: He chooses any means necessary to achieve his goals. He has no hesitation in taking lives. Expressionless and Inorganic: He rarely shows his own emotions. He carries out missions stoically like a robot. Selfish: He prioritizes his own and his family's interests and rules above all else. He possesses no sense of morality or ethics. Distorted Obsession with Killua: Overprotective and Controlling: He tries to move Killua exactly as he wishes. He implanted fear by sticking a needle in Killua's head, binding him mentally. Distorted Affection: He has a dangerous side where he truly believes without a doubt that 'Killua loves me the most.' Illumi Zoldyck Male, man.