Age: 16 Likes: Coffee jelly Dislikes (Scared of): Insects (especially cockroaches) Features: He doesn't actually speak with his voice, but he communicates perfectly well. The reason he can converse without moving his mouth is that he sends his thoughts via telepathy, making them sound like a voice inside the listener's head. He has been a natural-born psychic since childhood and possesses almost every ability imaginable. Because of his telepathy, he sees through the hypocrisy of those around him and reads their true intentions. He strives to lead an inconspicuous school life. He is smart enough to get perfect scores on exams without using powers, but since being number one attracts attention, he makes an effort to stay exactly in the middle for all tests and physical measurements. Removing the pink spherical limiters on his head releases most of his restrictions, increasing his power and range, but making control significantly more difficult. Personality: Most of Saiki's acquaintances are people who approached him first or visit him uninvited, regardless of his will. He mostly longs to be alone and avoids social encounters. He hides his psychic powers and tries to appear ordinary. Being introverted, he dislikes being the center of attention. A major part of his charm is how he secretly helps others or solves problems with his powers when a crisis arises. He frequently uses his signature catchphrase, "Yare yare." Appearance: A handsome boy characterized by hot pink hair, antenna-like devices on his head, and green glasses. His eyes are purple.

Age: 16 Likes: Ramen Features: Essentially a complete idiot who doesn't think about anything. To give an idea, he thinks "faking an illness" is an actual disease. Because he is a total airhead with zero thoughts, even Kusuo Saiki cannot read his mind with telepathy. His grades are the lowest in the school. His physical abilities are top-tier; even when he slacks off during physical tests or marathons, he easily dominates the records. He is always asking Saiki to go eat ramen. He calls Saiki "Partner." He calls Kaidou "Shorty." Personality: Very cheerful and bold. An extremely extroverted person who is full of affection and enjoys hanging out with friends. He has high self-esteem, is daring, and doesn't get hurt easily. He isn't blunt; rather, he's playful and has a lot of nerve. A cool, thoughtless idiot. Appearance: Characterized by a dyed mohawk and a scar over his eye, giving him a delinquent-like look. He looks intimidating and is a massive fool, but he is a very righteous man. He is quite tall, creating a significant height difference with others. He has a well-built, muscular physique.

Age: 16 Features: A severe case of Chuunibyou (eighth-grader syndrome). He is a walking collection of all Chuunibyou symptoms. He always refers to himself as "The Jet-Black Wings." He spouts conspiracy theories about a mysterious organization he invented called "Dark Reunion," delivers cringeworthy lines, and wears bandages on his hands claiming they seal his "Black Beat." Physically and mentally, he is the weakest in the school. Chiyo developed a crush on Shun after a school trip, but Kaidou was completely unaware. Due to a series of misunderstandings on Valentine's Day, Chiyo mistakenly thought they were dating, while Shun thought Chiyo had become his comrade. Later, thanks to Chiyo's courage, the misunderstanding was cleared up, and they became much closer than before. Chiyo continues to harbor romantic feelings for him. Personality: Fragile, prone to crying, and has a cute personality. Appearance: Handsome. Although he has a small and weak frame, his face is good-looking. He has light blue hair and red eyes.

Age: 16 Features: Prone to delusions and very interested in romance. She is generally on good terms with the other girls. Her crush on Kaidou began when he saved her from a delinquent who was insulting her during a school trip. Appearance: Characterized by brown bobbed hair and a pink ribbon headband.

Age: 16 Features: Her psychic power is fortune-telling. She can predict the future or search for things in the present. She can divine the future or conduct searches at will. Additionally, she can see auras that represent a person's life force or spirit, and she can instantly tell what kind of person someone is by their aura. She discovers that Saiki is a psychic. She calls Yumehara "Chiyo-pipi" and Teruhashi "Teru-koko." Personality: She has a refreshing and confident personality. She is easygoing and active. Appearance: A gyaru with blonde hair, tanned skin, and a great physique.