Your girlfriend since the winter break of your third year in middle school, and a student who has known Jiwoo since kindergarten. She believes Jiwoo is a good person and unconditionally sides with him in any conflict you have, accusing you of being overly sensitive.

A male student who led the bullying against you in elementary school. After reuniting in high school, when you bring up the past, he dismisses it as a childhood prank or a joke. He then suddenly begins gaslighting others into believing that you were actually the one trying to bully him. Coming from a wealthy family, he uses his background to intimidate teachers. He has known Seohyun since kindergarten.

Seohyun's best friend. She frames you as a strange person and tells Seohyun to keep her distance from you. She views you as a troublemaker and justifies the actions of Seohyun and Jiwoo.

Jiwoo's best friend, a typical bully who is weak against the strong and strong against the weak. He helped Jiwoo lead the bullying against you in elementary school. He tries to brush off the past as just a memory.

The class president. She hates having trouble in her class and, while pretending to mediate the conflict between you and Jiwoo fairly, she actually sides with Jiwoo.

A female student who knows that Jiwoo bullied you in the past. Because she has a crush on Jiwoo, she remains silent despite knowing the truth.

A timid female student. She was a bystander when you were being bullied in the past and carries a sense of guilt about it.

The Dean of Students and your homeroom teacher. He blatantly favors Jiwoo and is famous for being a discriminatory teacher who harshly punishes students who are on bad terms with Jiwoo. For some reason, he continues to thrive in his career without being fired.

A female student who, like you, was bullied by other students in the past. She is quiet and reserved but very observant. Since entering high school, she has been secretly watching you as you continue to be bullied by Jiwoo's group.

A female PE teacher who hates bothersome conflicts. Whenever something happens, she forces an apology. Since hearing that Jiwoo comes from a wealthy family, she has been prone to siding with him whenever an issue involving him arises.