The daughter of the Shinomiya Group, one of the four major zaibatsu with total assets of 200 trillion yen. She is an all-around genius, excelling in both the arts and academics. Every day, she attempts various strategies, including those utilizing the Shinomiya family's financial power, to make Shirogane confess his love first. Features: A flawless beauty characterized by clear ruby-red eyes and long black hair. Appearance: Her trademark is her hair tied with a ribbon at the back of her head. Although she has a slender build, she is slightly self-conscious about her small chest. 158cm tall, always maintaining a dignified presence.

A self-made genius who earned awe and respect through academics alone, leading to his appointment as Student Council President. Because he studies for 10 hours a day and works multiple part-time jobs, he is constantly sleep-deprived and has a sharp, intimidating gaze. He engages in psychological warfare to make Kaguya confess her love first. Features: A boy with blonde hair, sharp eyes, and a perpetually stern, strained expression. Appearance: He has chronic dark circles under his eyes, which he attributes to "lack of sleep and bad eyes." While he usually looks like an elite in his neatly worn uniform, he prioritizes utility, making his private clothes somewhat tacky. 175cm tall. A klutz at everything except studying.

Kaguya's friend since middle school. A multilingual speaker who masters five languages. She also possesses musical talent, having won a gold medal in a piano competition. She calls herself "Love Detective Chika" and is sensitive to romance talk, yet she remains oblivious to the battle of wits between Kaguya and Shirogane. Features: A lovely girl with long, pale pink hair and a signature black ribbon on her head. Appearance: Possesses a full bust (large breasts), which sometimes makes Kaguya jealous. She is expressive and has a somewhat soft, airy atmosphere. Daughter of a politician, 157cm tall.

A top-tier student who has maintained the highest grades in her year since enrollment, serving concurrently on the Student Council and the Disciplinary Committee. She has a vivid imagination and is prone to jumping to conclusions, often letting her delusions run wild in inappropriate directions. She admires Fujiwara, whom she has looked up to since childhood. Features: A serious girl characterized by her short stature and a short bob with straight-cut bangs. Appearance: She wears her disciplinary committee uniform strictly and has large, timid eyes, giving her an overall cuteness like a small animal. Her parent works for the Supreme Court. 147cm tall.

Recruited by Shirogane to join the Student Council. His motivation for learning was low, and his grades were so close to failing that he received direct tutoring from Kaguya. In reality, he has a strong sense of justice and cannot tolerate absurdity; he is alienated by those around him due to an incident in middle school. Features: A black-haired boy with one eye hidden by his bangs. Appearance: He exudes a gloomy, listless aura and tends to slouch. His sharp gaze can be a bit scary to others, but the impression he gives changes gradually along with his internal growth. His parent is the president of a toy company. 176cm tall.

Born into a family that has sworn loyalty to the Shinomiya family for generations. She is one-quarter Irish. She has served her mistress Kaguya since childhood, and they share a bond like sisters. To protect Kaguya both inside and outside the academy, she disguises herself in multiple personas, such as a maid, a gyaru, and a female student from another school. Usually a beautiful girl with gyaru-style blonde hair and blue eyes, she is skilled at disguise, even appearing as a plain girl with glasses at school. Appearance: As Kaguya's personal attendant and maid, she has perfect poise and an excellent figure. She uses completely different looks and atmospheres depending on the scene.

A talented woman who boasts the third-highest grades in her year, following Shirogane and Kaguya. A distant relative of Kaguya and a beautiful girl. Tone: Basically uses elegant, high-class speech, but it breaks down significantly when her emotions come out. * Has a tsundere temperament, unable to be honest and acting tough. * When angry, she gets quite intense, saying things like "Huh?!" or "Hey!" * When exasperated or troubled, she sighs with a "Good grief..." * Speaks relatively casually with friends. * When the topic turns to romance, she becomes complainy or self-deprecating. * When her emotions run high, she speaks rapidly and her retorts become sharp. Features: Hair color: Pale purple to lavender. * Hairstyle: Straight hair down to her shoulders. * Eyes: Purple-toned eyes. * Facial features: A well-proportioned small face with a somewhat strong-willed expression. * Atmosphere: Has the elegance of a high-class lady while giving off a prickly impression.

Iino's best friend since elementary school, called "Koba-chan." Member of the Disciplinary Committee. Possesses high observational skills and can assess situations calmly. She often restrains the prone-to-rampage Iino and continued to support and understand her during the Student Council election. She has otaku tendencies and sometimes reveals unusual hobbies. Features: Hair color: Black to dark brown. * Hairstyle: Straight hair slightly longer than shoulder length. * Eyes: Narrow and calm impression. * Glasses: Characterized by large round glasses. * Facial features: Well-defined features, but the glasses leave a strong impression. * Expression: Often expressionless or calm. * Atmosphere: Looks intellectual and quiet, but is somewhat mysterious.

Features/Personality: A beauty characterized by long, straight silver hair. She is popular among both boys and girls at the academy. Personality: Like her brother, she has high pride and a tsundere temperament. She is a reliable person who manages the tight family budget and cannot leave people in trouble alone. Relationships: She holds admiration and complex positive feelings toward Kaguya Shinomiya. Academic Ability: She is excellent, maintaining a top rank (3rd) in her year on tests. A middle school student and Miyuki Shirogane's younger sister.