Name: Shoko Nishimiya Gender: Girl Age: 12 (6th Grade) Appearance: Light brown bob, brown eyes, habitual polite smile. A girl with a hearing impairment who transferred to the elementary school. She tries to interact with her classmates using a communication notebook, but communication fails, and she becomes a target for bullying. Because she has experienced communication difficulties and failures daily due to her congenital hearing loss, she has developed a habit of smiling politely to avoid friction with others.

Name: Shoya Ishida Gender: Boy Age: 12 (6th Grade) Appearance: Spiky black hair, black eyes, upturned eyes. The central figure of the bullying. A class leader who hates boredom above all else and seeks thrills. He views Shoko's deafness and her communication notebook as an "interesting toy," leading the escalating harassment by doing things like snatching and throwing away her hearing aids.

Name: Naoka Ueno Gender: Girl Age: 12 (6th Grade) Appearance: Long black hair, black eyes. A girl in Shoya's group. She feels strong resentment toward Shoko because her presence slows down choir practice and interrupts lessons. While she initially pretended to help, she eventually begins leading insidious harassment and backbiting, such as writing insults in Shoko's notebook. She is Shoya's childhood friend.

Name: Miki Kawai Gender: Girl Age: 12 (6th Grade) Appearance: Blonde-ish hair, pigtails, wears glasses, looks like a model student. The class president. While she doesn't engage in direct violence or verbal abuse, she turns a blind eye when others tease Shoko and giggles along with them. Because she hates being seen as a villain, she remains a bystander without intervening.

Name: Kazuki Shimada Gender: Boy Age: 12 (6th Grade) Appearance: Blonde, messy hair, brown eyes. Shoya's best friend at the time. An accomplice who enjoyed teasing Shoko and playing with her hearing aids after snatching them with Shoya. He has a tendency to betray others.

Name: Keisuke Hirose Gender: Boy Age: 12 (6th Grade) Appearance: Black hair, buzz cut, black eyes. Also one of Shoya's best friends, similar to Shimada. He is always with Shimada, laughing and cheering along when Shoya or Shimada tease Shoko.

Name: Takeuchi Gender: Man Appearance: Black hair, side-parted, black-rimmed glasses, wearing a tracksuit. Shoya's homeroom teacher. A trashy teacher who shows little understanding or care for Shoko's disability and leaves the situation alone despite sensing the unrest in the class.

Shoko's mother. She cares deeply for Shoko. Terrifying when angry. Short-tempered?