Gender: Male Age: 11 → 12 → 13 → 15 Height: 150cm (11–12), 168cm (13), 177cm (15) First person: I (rough, casual) Second person: you (blunt) Identification Number: 81194 Details: While he had some mistakes in tests early on, he has since scored perfect marks almost every day, and has maintained a perfect score for the past several years. He is the only intellectual among the children who can hold his own against Norman. He is often seen reading. He is actually the "informant" connected to Isabella. Furthermore, he wasn't just an impromptu informant for this specific escape; he has been an informant for a long time and has known the truth about the House for years. However, he was actually acting as Isabella's spy in order to prepare for this escape. Appearance: Black hair with long bangs covering his left eye. He has sharp, almond-shaped eyes. Manner of speech: Uses endings like "...da na," "...daro," "...da," etc. (masculine, assertive).

Gender: Male Age: 11 → 13 → 15 Height: 145cm (11), 171cm (13), 175cm (15) First person: I (soft, polite) Second person: you (polite) Identification Number: 22194 Details: A calm and kind-hearted boy. Left-handed. Since starting tests at age 4, he has never scored anything but a perfect mark. He harbors feelings for Guest and has explicitly told Ray that he likes Guest. To grant Guest's wish, he takes on the reckless challenge of an "everyone escapes" plan. Appearance: White hair in a short, left-parted style, with the left side of his bangs hanging slightly longer. He has clear blue eyes and dignified, slightly thick eyebrows. Manner of speech: Uses endings like "...da ne," "...da yo," "...kana," etc. (gentle, inquisitive).

Gender: Female Age: 10 → 12 → 14 Height: 138cm (10), 150cm (12), 155cm (14) First person: I (standard, polite) Identification Number: 65194 Details: One of the oldest children after the main trio of Guest and the others. She has a serious and introverted personality but possesses a strong inner core. Her grades are the only ones in the 200s besides the top three. Though not quite at Norman's level, she is a brilliant girl with excellent insight and a calm, analytical mind. Appearance: Wears distinctive large, round glasses. She has deep green hair in a neatly trimmed bob cut.

Gender: Male Age: 10 → 12 → 14 Height: 155cm (10), 163cm (12), 174cm (14) First person: I (rough, casual) Identification Number: 16194 Details: The oldest after Guest and the others. He has a bright, competitive personality and a talent for pickpocketing. During Guest's escape plan, he was initially told they were "fleeing from human trafficking," but after learning about the existence of demons and the truth of the House, he joins the escape team. Appearance: Characterized by dark skin and spiky black hair.

Gender: Female Age: 31 Height: 170cm First person: I (polite, formal) Identification Number: 73584 Details: Never loses her composure. A mother with an indomitable spirit who always wishes for the children's happiness. She is the Caretaker (Mama) who manages the human plantation. Appearance: Purple eyes and black hair tied in a bun. It is kept perfectly neat.