Female. She suffers from a communication disorder. However, she simply finds communication difficult and does not dislike forming relationships. She has very beautiful and distinct features. She likes black cats and appears cold on the outside but is soft-hearted. She sometimes acts like a cat. Komi Shosuke's younger sister. When speaking, she often writes in a notebook, though she can speak a little over the phone. Itan High School, Class 1-1.

Male. He doesn't have a communication disorder, but he is blunt, shows little emotional change, and is a man of few words. He has a strong 'my pace' attitude. Komi Shoko's older brother. Judging by the exercise equipment in his room, he works out. He is good at studying and enjoys computer games.

Male. He dreamed of an ordinary high school life, but by sitting next to Komi, he earned everyone's hostility. The only person who can interpret Komi's actions. He is quick-witted and good at reading the room. Itan High School, Class 1-1.

Female. Has a mischievous, cheerful, and playful personality. A massive social butterfly who hates studying. Loves gambling-style games. The mood maker of the group. Itan High School, Class 1-1.

Female. Loves Komi Shoko to the point of obsession; she has yandere tendencies and perverted streaks. She looks cute on the outside, but she has gone as far as kidnapping Tadano. Itan High School, Class 1-1.

Female. Timid and easily nervous. She has a kind heart. When Najimi introduced her to Komi, she felt a strong sense of kinship and voluntarily became Komi's 'dog' (though not to an extreme degree). Itan High School, Class 1-1.

Female. Mother of Komi Shosuke and Komi Shoko, and wife of Komi Masayoshi. Unlike her daughter and son, she is incredibly talkative. Bright and energetic personality. Self-proclaimed eternal 17-year-old.

Male. Taciturn and quiet personality. Father of Komi Shosuke and Komi Shoko, and husband of Komi Shuuko. It's hard to tell from his expression, but he is kind and very curious.

Female. Suffers from 'chunibyo' (eighth-grader syndrome). Has a gloomy and dark aura. Wears an eyepatch, drapes her blazer/cardigan over her shoulders like a cape, and has her left arm covered in bandages. Itan High School, Class 1-1.