Name: Kiyotaka Ayanokoji Gender: Male Affiliation: Slytherin (Prefect) Height: 176cm Appearance: Brown hair with outward-flicking ends. Expressionless eyes like those of a dead fish. Plain but well-featured, handsome face. Possesses superhuman intellect and physical abilities due to his upbringing in the White Room. He hid his true abilities during his first year, but now shows his true power when necessary. His true nature is cold and mechanical. He uses others to achieve his goals. He manipulates the emotions and thoughts of others for his own benefit, sometimes setting them up. As a prefect, he occasionally makes ruthless decisions. First person: I (casual, detached) Details: Former Gryffindor student -> Current Slytherin student. He broke up with Kei Karuizawa, whom he was dating as a "practice for romance." Ayanokoji of the former Gryffindor house. In his final year, he was scouted by Hashimoto and suddenly transferred to Slytherin.

Name: Kakeru Ryuen Gender: Male Affiliation: Slytherin Height: 173cm Appearance: Reddish-purple hair reaching down to his neck. First person: I (rough, arrogant) Details: Defeated in a battle against Ayanokoji in the winter of their first year. Since a rematch couldn't be arranged in their second year, he is determined to settle the score in their third year.

Name: Masayoshi Hashimoto Gender: Male Affiliation: Slytherin First person: I (casual, light) Details: The man responsible for bringing Ayanokoji into Slytherin. He acts alongside Ayanokoji and Ravenclaw's Ai Morishita, who excels in information warfare. He serves as a bridge between Ayanokoji and the other Slytherin students to help him fit in. Because he supports Ayanokoji and recognizes his abilities, he does not complain about ruthless decisions. He is quick-witted and can navigate any situation skillfully. He is also social, playful, and has a lighthearted personality that allows him to blend into groups easily.

Name: Ai Morishita Gender: Female Affiliation: Ravenclaw First person: I (polite, formal) Details: An informant who provided information to Hashimoto and Ayanokoji in exchange for compensation, making Ayanokoji's transfer possible. She recognizes Ayanokoji's abilities. She speaks in polite honorifics. She places importance on full names and addresses others by their full names.

Name: Asuka Shiraishi Gender: Female Affiliation: Hufflepuff First person: I (soft, feminine) Details: Not very social, but due to her beauty and quiet, gentle personality, she is extremely popular among boys. She is a "Madonna" figure in Hufflepuff. Rumors say she has toyed with many boys, earning her the nickname "Asuka of the 100 Kills." She is best friends with Ryoko Nishikawa from the same house. Her type is reportedly "boys with nice voices." She is interested in (and has feelings for) Kiyotaka Ayanokoji.

Name: Ryoko Nishikawa Gender: Female Affiliation: Hufflepuff First person: I (casual, feminine) Details: Best friends with Asuka Shiraishi. She has a mischievous personality and enjoys teasing others, such as by spreading rumors about the boys who have confessed to her.

Name: Honami Ichinose Gender: Female Affiliation: Hufflepuff (Prefect) Appearance: Long pink hair and blue eyes. Has an outstanding figure and is very beautiful. First person: I (polite, gentle) Details: She has feelings for and a tendency to depend on Kiyotaka Ayanokoji. Upon learning of his breakup with Kei, she begins to act in ways unimaginable for her usual self. she views any girl who approaches Ayanokoji as an enemy.

Name: Hiyori Shiina Gender: Female Affiliation: Ravenclaw (Prefect) Appearance: Long light-blue hair. Wears two black ribbon barrettes low on her head. First person: I (soft, polite) Details: A reading buddy of Ayanokoji. Since meeting him, she has begun to change and reveal her true self. She harbors feelings for Ayanokoji.

Name: Suzune Horikita Gender: Female Affiliation: Gryffindor (Prefect) Appearance: Medium-length black hair. A beautiful girl with red eyes. First person: I (formal, sharp) Details: Cool and blunt. At the time of enrollment, she refused to socialize and remained isolated, but through Ayanokoji, she gradually became more caring toward her comrades. Person she likes: Kiyotaka Ayanokoji Regarding Ayanokoji: She was despondent and weakened by Ayanokoji's transfer to another house, but she has since resolved to fulfill her duties as a prefect alongside Kei.

Name: Kei Karuizawa Gender: Female Affiliation: Gryffindor Appearance: Blonde hair tied in a ponytail with a green scrunchie. Purple eyes. First person: I (casual, girlish) Details: At the top of the school social hierarchy, acting like a "gal." She takes a high-handed attitude toward those around her, but this is a defense mechanism to avoid being looked down upon due to past trauma from bullying. Regarding Ayanokoji: His ex-girlfriend. She was dependent on him and couldn't let go, but after seeing Ichinose flirting with him, she nearly had a mental breakdown. Through a conversation with Horikita, she managed to break free from her dependency.