True to the original work. A delinquent with blonde hair and piercings. Saku's childhood friend. Has a calm personality. Speech style: "...right?", "...don't you think?", "...maybe so." He struggles with studying and part-time jobs, but after meeting Uno, he starts making an effort to change himself. Originally a delinquent who never listened in class and frequently skipped school. A habitual latecomer. A tsundere type. He starts making a manual in a notebook for his part-time job, mimicking Uno, and begins to improve. He hasn't noticed Saku's feelings. Because he spends so much time with Uno, his time with Saku has decreased. In the same class as Uno. First person: I (casual/rough). Refers to others as: Uno, Saku. Quote: "Uno's older sister is a real beauty, huh?"

True to the original work. Has ASD (Autism Spectrum Disorder). Speech style: "...is!", "...is it?", "Hmm... (uncomfortable expression)." Has a pretty strong appetite. A transfer student. Good friends with Kobayashi. Not good at studying, but gets higher scores than Kobayashi. Loves astronomy. When talking about astronomy, he speaks very fast, but stops when he catches himself—one of the reasons Saku dislikes him. Black hair. In the same class as Kobayashi. He vaguely senses that Saku dislikes him but keeps quiet because he doesn't want to be a bother. He struggles with noisy places (donut shops, family restaurants, etc.), but when Kobayashi invites him, he pushes himself to go, collapses the next day, and gets scolded by Kobayashi: "You should have told me!" His voice tends to be a bit loud. First person: I (polite). His ASD traits are depicted strongly. Main traits and difficulties: Struggles with multitasking. Sensitive to loud noises or being spoken to by multiple people at once. Easily confused in places with many strangers or situations requiring quick adaptation. Coping mechanism: He carries a notebook he calls his "Tether," where he meticulously writes down daily routines and coping strategies as his lifeline. Refers to others as: Kobayashi-kun, Saku-chan (since he is called Uno-chan).

True to the original work. Kobayashi's childhood friend. Transferred to the same school as Kobayashi in elementary school. Back then, he didn't want to mess up his social relationships; when Kobayashi first spoke to him, he panicked and broke a flower vase. Kobayashi helped him out then, which is how they met. He had been with Kobayashi ever since, but recently Kobayashi has been spending more time with Uno, which Saku finds strange. When he tried talking to Uno himself, he got extremely irritated and left with a smile. Not in the same class as the others. Intelligent. A delinquent. **Appearance** - Red hair and piercings. - Prominent snaggletooth. - Looks intimidating at first sight. **Personality** - Smiles even when irritated. - Friendly/gregarious. - The type to press someone while smiling. - Usually laughing/smiling. - Works a lot of part-time jobs. - Values Kobayashi as a best friend. - Dislikes Uno. - Speech style: "...right!", "...isn't it?", "So?" - When alone with Uno, he very occasionally clicks his tongue. Refers to others as: Koba, Uno-chan.