Class of superiority

A student in Class A, Kohei Katsuragi's right-hand man. He is selfish, looks down on students from other classes, calling them trash. He is also a coward. He received the highest number of critical marks during the special exam, which led to his expulsion from school.

A consultant at an electronics store. He harassed Airi Sakura.

A student in Class 1-C. A classmate of Kakeru Ryuen. During a special exam on a cruise ship, along with Nanami Yabu and Saki Yamashita, she had an argument with Kei Karuizawa. She was later manipulated by Kiyotaka Ayanokōji, who had her expelled from school.

A student in Class D. A close friend of Satsuki Shinohara and Mai Sato. Born into a wealthy family, she has lived in luxury since childhood. Despite this, she has grown up quite disciplined and well-mannered, so she doesn't exhibit arrogance toward others.

Kakeru Ryuen's classmate. Quiet, with a peaceful and kind personality. She prefers a polite style of communication. She always carries books with her in case she meets someone who shares her interest in literature. She disapproves of class divisions, wanting everyone to live and study harmoniously.

A student in Class 1-D. Nicknamed "Professor," he consistently ranks near the bottom of his class in academics. He's well-versed in technology and history, but not so good at socializing. He tends to speak with an old-fashioned accent, which often causes resentment among the other students.

A student in Class 1-D. She founded the "Ayanokōji Group" club. At a young age, she already had large breasts, which attracted the attention of boys. Due to constant stares and teasing, she became colder and more withdrawn, giving up on any attempts to get close to anyone. She knows about Airi's feelings for Kiyotaka.

A student in Class 1-B. He's poor at sports, but excels at academics and everyday life. He's popular with both girls and boys. During the cruise ship exam, he was assigned to the "Rabbit" group along with Kiyotaka Ayanokōji and helped Honami Ichinose rally the group together.

A classmate of Kiyotaka Ayanokōji. Smart, but blunt and straightforward. Shows excellent academic skills, but struggles with physical abilities. Considers it a mistake to be in Ikusei's class after entering Kodo High School.

Class leader Arisu Sakayanagi. Stern, he carries out his duties responsibly. He does not tolerate injustice among students. He is a former student at Kodo Ikusei High School, in the same year as Sae Chabashira and Chie Hoshinomiya. He is the only teacher who openly disapproves of the school's management under the new principal, Tsukishiro.

A student in grade 1-C. A loner who barely communicates with her classmates.

A first-year student at Kodo Ikusei High School. He was assigned to Class 1-B. He claims to be from the same middle school as Kikyo Kushida and Suzune Horikita. He is a skilled liar and is extremely cautious and calculating.

A student of class 1-D

A student in Class 1-B. During the sports festival, he won many competitions and participated in the three-legged race with Honami Ichinose.

A classmate of Kiyotaka Ayanokōji. She is friends with Mai Sato and Chiaki Matsushita. She has a short temper, average grades, and average looks, making her quite unpopular with boys. Before Christmas, she almost got into a fight with upperclassmen, but was saved by Kanji Ike. She began dating him in her second year.

A student in Class C. He supports Kakeru Ryuen and is one of the few students whom Ryuen recognizes as useful within his ranks. After the sports festival, when Kakeru began searching for the manipulator from Class D, Satoru was the only one who immediately suspected Kiyotaka Ayanokōji.

A student in Class C and a friend of Shiho Manabe. During the special exam on the cruise ship, she and her friends bullied Kei Karuizawa.

Honami Ichinose's classmate and right-hand man. Calm and reasonable. He's very friendly, doesn't look down on lower-ranked classes, and tries to get along with most students. He's very tolerant of others' shortcomings, calmly expresses his point of view on any given issue, but is always ready to defend his classmates, sometimes even in a rather aggressive manner.

A student in Class 1-C. He's in the basketball club. He's one of the three boys beaten up by Ken Sudou.

A classmate of Kiyotaka Ayanokōji. The sole heir to the Koenji conglomerate. He is guaranteed a position as the head of his father's company, so Rokusuke cares little about what happens in class or school life in general. Narcissistic and arrogant, he looks down on everyone. He is also gifted with intelligence, observation, and exceptional physical abilities.

A student in class 1-C, she gives the impression of being a meek girl, wears glasses and wears her hair in a bun

A student in Class 1-D. Friend of Haruka Yamauchi, Ken Sudou, and Kanji Ike. Lost all his private points within his first month at Kodo Ikusei.

A student of class 2-C

A first-year student in Class D who often interacts with Kei Karuizawa.

Arisu Sakayanagi's father. Chairman of the board of trustees of Kodo Ikusei High School. An old acquaintance and former subordinate of Atsuomi Ayanokōji. He assisted him in managing the White Room project.

A student in Class 1-C and a member of Shiho Manabe's group. During the cruise ship exam, she and her friends bullied Kei Karuizawa.

A classmate of Kiyotaka Ayanokōji. Quiet and unremarkable, she excels academically and is one of the best students in her class. She was born in China but moved to Japan during elementary school. Because of her long name, her friends began calling her simply "Mi."

A student in Class 2-A and the vice president of the student council. Calculating and cunning, he possesses the charisma of a natural leader and a sharp mind, which allows him to easily manipulate other students.

A student in Class 1-C. Lively and quite fiery, she possesses excellent academic qualities and is well-developed physically. She is skilled in combat, possessing fighting skills that rival those of many martial artists. A loner by nature, she dislikes violence and cruelty. She dislikes being pitied.

A student from Class 1-C injured her leg during the girls' obstacle course race.

A classmate of Kiyotaka Ayanokōji. One of the most popular students in her grade. Quite friendly and outgoing. She was a diligent student in elementary school, but after entering middle school, she began partying with friends, which led to a decline in her grades. She has a crush on Kiyotaka Ayanokōji.

A student in Class A. A member of the Sakayanagi faction, she genuinely despises Arisa due to her methods. She frequently shoplifts. At the end of her second year, following a special exam, she was expelled from Kodo Ikusei.

A student of class A. To always stay on top, he prefers to play for the winning team.

A student in Class A. A serious and sensible young man. He always follows the school rules without trying to find loopholes. When confronting other classes, he often resorts to defensive tactics, thereby blocking any possible information leakage. He competes with Arisu for power in the class.

A student in class D. She is timid, stutters and therefore feels awkward.

Koji Machida - A student of Class 1-A, he passed the selection to participate in the basketball competition.

A student in Class C and a member of the basketball club. Along with Daichi Ishizaki and Reo Kondo, he provoked Ken Sudo, earning him a beating.

A classmate of Kiyotaka Ayanokōji. She is an excellent athlete and a member of the swimming club. She is in love with Ken Sudō.

A classmate of Kiyotaka Ayanokōji. One of the "three idiots" of the class, along with Ken Sudō and Haruki Yamauchi. A very sociable guy with excellent social skills, but his academic performance and physical abilities leave much to be desired.

A student in Class C and one of Kakeru Ryuen's henchmen. On Kakeru's orders, he, along with Reo Kondo and Kyogo Komiya, attacked Ken Sudou. He helped Ryuen torture Kei Karuizawa by dousing her with cold water, after which Kiyotaka beat him.

Class representative of Class 1-A. Due to a congenital heart defect, she is much shorter than her peers and always walks with a cane. Polite and intelligent, she possesses both excellent leadership qualities and keen intuition. At the same time, she is cunning, enjoying tormenting and manipulating people. She does not tolerate any jokes about her height. She is very vindictive.

A student in Class C and Kakeru's bodyguard. He assisted Ryuen in torturing Karuizawa. During his fight with Kiyotaka, despite his physical superiority, he was unable to put up any resistance to Ayanokōji and was defeated.

A classmate of Kiyotaka Ayanokōji. Always honest and straightforward. A member of the "Ayanokōji Group." He has a crush on Haruka Hasebe. Before entering high school, he lived in the same neighborhood as Kakeru Ryuen and Kazuomi Hōsen. In middle school, he became interested in archery, joined the archery club, and even competed in national competitions.

A student in Class 3-A and assistant to the student council president. She takes her job extremely seriously. She is in love with Manabu Horikita and admires his leadership skills, always supporting him.

Sae Chabashira is the homeroom teacher of 1-D, calm but demanding, and has a good eye for what's going on in the classroom.

Atsuomi Ayanokōji is Kiyotaka's father, a strict and domineering man who created the White Room.

Ichika Amasawa (first year) is energetic, cheeky, and loves to tease, but she's also very perceptive. She has her own goals related to Ayanokōji.

Manabu Horikita (3-A, Student Council President) is Suzune's older brother, strict and principled, and the symbol of the school's "perfect student."

Honami Ichinose (Class 2-B) is kind and compassionate, trying to resolve things peacefully and help others. She has a knack for connecting with people, but can sometimes be too trusting.

Ken Sudo is physically strong, but hot-tempered and blunt. He relies more on force than strategy and often gets into conflicts.

Airi Sakura is a quiet, shy girl who tries to avoid attracting attention. She has a secret: outside of school, she is a popular etching idol under the stage name Shizuku.

Rokusuke Koenji comes from a wealthy and influential family, is very self-confident and arrogant. He considers others beneath him and is not particularly keen on teamwork.

Kakeru Ryuen is the leader of his class, operating through intimidation and pressure, relying on force and fear. He's also intelligent and able to quickly adapt to the situation.

Kikyo Kushida seems like the friendliest and sweetest person in the class, easily getting along with everyone. In reality, she's a skilled schemer who's willing to go to great lengths to achieve her goals.

Yosuke Hirata is the class representative of Class D, an open and friendly person who tries to help everyone and maintain a positive atmosphere in the class.

Kei Karuizawa is a popular girl in Class D. Due to past bullying, she tries to stay within the safety of her "relationship" to avoid being bullied. Over time, she reveals herself as a stronger, more independent person.

Suzune Horikita, a proud and independent student in Class D, initially believes she doesn't need friends. She wants to prove her worth to her older brother (the student council president) and move up the ranks. She gradually changes and learns to work as a team player.

Kiyotaka Ayanokōji, the protagonist of Classroom of Excellence, is a student in Class 1-D. He appears to be an ordinary, unremarkable guy: he rarely shows emotion, speaks calmly and evenly, and has average grades. But in reality, he is very intelligent and calculating—able to calculate people and situations many steps ahead.

He grew up in the "White Room"—a secret project where children were trained to be perfect performers: they were taught to control their emotions, think strategically, and avoid attachments. Because of this, Kiyotaka has grown accustomed to viewing people as pieces in a game and operating from the shadows so no one realizes how powerful he is. He's not a villain, however: he often helps his classmates, but he does it in a way that makes it look like an accident or their own doing.