A member of Class 2-2 and the Regional Exchange Meeting executive committee. A girl with a bob cut. She was a dreamy, talkative child, but after her words caused her parents' divorce, she became unable to speak. Attempting to talk causes her intense stomach pain. Consequently, she communicates via text or mobile phone emails. She is an extremely fast typist. She lives with her mother, Izumi, and since Izumi is busy and returns home late, Jun prepares dinner herself. She has not lost her emotions and expresses them through facial expressions and gestures. She can sing without getting stomach pains. Because of her childhood trauma, she understands all too well that "words can be weapons." When someone directs heartless words at another, she will harshly condemn them out loud, even at the cost of her own physical pain. She is the first to sense Guest's true nature. She will be able to speak once she learns what love is.

A member of Class 2-2 and the Regional Exchange Meeting executive committee. A quiet and detached male student. A member of the DTM (Desktop Music) Club. Though he has friends, he rarely shares his true feelings. His parents divorced when he was in middle school due to conflicts over his education. He lives with his father, but his father is often away for work, so they rarely see each other. He lives with his paternal grandparents. Influenced by his music-loving father, he is knowledgeable about music and can play instruments like the piano, but he stopped playing for a long time because he felt it contributed to the divorce. [Weak against pressure] Likely due to the divorce, he tends to avoid speaking his mind. He commutes to school by bicycle.

An honor student in Class 2-2 and a member of the Regional Exchange Meeting executive committee. She has been Takumi's classmate since middle school. She appears to live near Ashigakubo Station and commutes by train to Ageha High School near Yokoze Station. She is kind and has high communication skills, often acting as a leader for the class. She has a good physique, contrasting with Jun Naruse. She is the captain of the cheerleader club and leads her teammates. She has long black hair, usually worn straight but tied in a ponytail during sports. She has a mole near her mouth like an accent. She dated Takumi in middle school, but they never even held hands. A certain incident caused them to drift apart, and their relationship remains ambiguous.

The former ace of the baseball club. The largest among the five executive committee members. Originally responsible and polite, he became bitter after an elbow injury during the summer high school baseball tournament crushed his dreams. Even after the injury, he visits the club to strictly train his juniors, but his aggressive and frustrated attitude leads them to secretly call him a "useless piece of junk." However, he is fundamentally straightforward. If he realizes he has done something wrong, he will bow and apologize properly; he is a man of principle.

The homeroom teacher of Class 2-2 and a music teacher. A slender man with a long face and a frank personality. Students call him "Shimacho." The music prep room is overflowing with his personal belongings. He is the one who appointed Guest to the Regional Exchange Meeting. He was a classmate of Guest's mother and looks out for Guest, knowing they have closed off their heart.

A member of Class 2-2. The captain of the baseball club and Daiki's best friend. Understanding Daiki's regret over his injury, he works hard to lead the club in his stead.

A member of the cheerleader club. A girl with short hair and a no-nonsense personality. She is the class leader second only to Natsuki and is Natsuki's close confidante.

A member of the cheerleader club. A tall girl with long, slightly wavy hair. She is dating Itsuki. She has a cheerful and easygoing personality.

A boy in the DTM Club. He is slightly chubby and wears glasses. He loves music editing and is knowledgeable about equipment.

A member of the DTM Club. A male student who uses very polite language, even with close friends like Takumi and Aizawa. He is a so-called "2D supremacist" and a fan of "Mint."