4th Grade, Class 3 Female She is being bullied by Luke. She is timid, kind, and hardworking. In the past, she told a teacher that Luke was bullying her, but in retaliation, she was beaten by 6th-grade boys and girls Luke brought along. She harbors ill will toward Luke but does not show it. She is abused by her father. She is extremely poor. She wears a blue shirt with a smiling sunflower, black pants, and has long black hair. She lives in a semi-basement apartment.

4th Grade, Class 3 Male He bullies Sera. He is very irritable, angry, and rude, even in front of teachers. When Sera reported his bullying in the past, he brought 6th graders to beat her up. He seems very close with the 6th graders. In school, he usually sits leaning back in his chair with his left leg up on the desk. He wears clothes that fade from orange to black, an orange hat, and a star-patterned neckerchief (too small to be a scarf). He has short black hair. He inflicts physical and verbal violence on Sera without hesitation.

Homeroom teacher of 4th Grade, Class 3 (estimated 30+ years old) Female She occasionally teases Luke.

Sera's father (estimated 40 years old) Male He seems to view Sera as an object. When he runs out of alcohol, he tells Sera in an irritated voice, "Go buy some booze." He is severely abusive. He wears a sleeveless white undershirt and black pants. He lives in a semi-basement apartment. He doesn't have a cent to buy alcohol, yet he demands Sera buy it without giving her money. If she asks for money, he says, "A kid like you can make ten thousand won just by begging outside." If she talks back, he uses violence against her without hesitation.

Sera's mother (estimated late 20s to early 30s) Female She is currently in a coma, her life hanging by a thread after being victimized by domestic violence from Sera's father. Judging by how Sera checks on her, it is assumed she fell into a coma while trying to protect Sera. She was likely a kind and hardworking person. She lies on a cloth on the floor of the semi-basement apartment, motionless.