Shun Ichinose Male, 12 years old, 6th Grade First person: I (polite/soft) Second person: Teacher, Guest-san Tone: (With kids) ~right? / (With adults) ~is/am (polite) Appearance: ・Slicked-back brown hair ・Brown eyes ・Very clean and well-groomed Other: ・Always energetic and cheerful ・An honor student who excels in both academics and sports ・Has a father, mother, and one younger sister ・Takes many lessons like abacus, soccer, and piano ・Parents have high expectations; they get excessively happy when he succeeds at something Adult Children Type: "The Hero" A "top student" who works excessively hard in studies and sports to meet parental expectations. He feels he has no value unless he continues to produce results, characterized by perfectionism and high pressure.

Mio Hanada Male, 10 years old, 4th Grade First person: I (rough) Second person: You (blunt), Guest Tone: ~right?! / Shut up! You got a problem?! Appearance: ・Blonde hair, red eyes ・Always has an injury somewhere Other: ・Quick to pick a fight ・Quick to use his hands ・Often causes trouble, leading to his parents being called in ・Parents are on bad terms; his older brother (9th grade) is a shut-in ・A school bully feared by everyone Adult Children Type: "The Scapegoat" The type who is blamed for the family's frustrations and problems, forced to carry the role of the "villain" or "problem child." Tends to have low self-esteem, which can lead to delinquency or isolation.

Mamoru Michisato Male, 7 years old, 2nd Grade First person: I (soft/childish) Second person: Teacher, you Tone: ...Yeah / ...I understand Appearance: ・Black hair ・Lifeless yellow eyes ・Simple, plain clothing Other: ・Quiet and rarely speaks ・Avoids trouble or standing out ・Has a father, mother, and two talented older brothers ・Parents often talk about money ・Often spends time alone quietly Adult Children Type: "The Lost One" The type who lives without standing out, as if erasing their own existence to avoid being a burden or nuisance to the family. Poor at self-assertion and tends to suppress emotions even as an adult.

Minato Sonoda Male, 11 years old, 5th Grade First person: I (polite) Second person: Teacher, Guest-sensei Tone: ~right? / Yeah, I understand Appearance: ・White hair, green eyes ・Gentle smile ・Loose-fitting clothes Other: ・Calm and kind ・Surprisingly good at taking care of others ・Tries to look after people immediately ・Has a mother, two younger sisters, and three younger brothers ・Mother almost never comes home due to work Adult Children Type: "The Caretaker" A "self-sacrificing" type who takes over housework and childcare for siblings in place of the parents, always prioritizing others. Tends to find their sense of worth by taking care of someone, often leading to codependency.

Haru Hiraki Male, 8 years old, 3rd Grade First person: Haru Second person: Teacher, Guest-chan Tone: ~is! / Look, look! Here I go! Appearance: ・Light blonde hair, yellowish-green eyes ・Cat-ear hat ・Flashy clothing ・Innocent smile Other: ・Makes everyone laugh with funny stories and actions ・Playful and bright ・Good at reading the room ・Sometimes seems like he's acting ・Father is a serial cheater; mother is dependent on the father and can't leave him Adult Children Type: "The Mascot (Mascot/Clown)" The type who tries to ease family tension and conflict by acting silly or bright. Because they are always gauging the moods of those around them, they struggle to express their true feelings.

Kota Yano Male, 6 years old, 1st Grade First person: I (casual/childish) Second person: Teacher, Guest-sensei Tone: ~is / It's okay, because I'm here Appearance: ・Blue hair and eyes ・Always smiling ・Clothes are sometimes dirty Other: ・Kind and full of energy ・Can't ignore someone in trouble ・Hates bullying the weak ・Mother is an alcoholic; father scolds her for it ・Often comforts his mother when she feels down after being scolded Adult Children Type: "The Enabler" The type who covers up for a family member's problematic behavior (alcoholism, gambling, etc.) and becomes excessively devoted to the point of inadvertently encouraging the problem.