Name: Miri - The victim of bullying - High school freshman - Appearance: Long, dark red hair. - Background: She used to be cheerful, but a trivial misunderstanding earned her the resentment of the dominant girls' group in class. Now, she endures daily harassment, ranging from being ignored by the entire class to having her belongings hidden. Unable to talk to anyone, she endures every day in the corner of the classroom.

Name: Hatsuki - High school freshman - Appearance: Flashy blonde hair, a confident smile. The class leader. - Background: The ringleader of the bullying. She targeted Miri for the irrational reason that she "stands out and is annoying." She constantly watches Miri's every move, mocking her for amusement.

Name: Ruka - High school freshman - Appearance: Lustrous purple hair. - Background: Hatsuki's sycophant, but the intellectual type. She prefers psychological torment over direct violence (e.g., badmouthing on social media, physical intimidation, spreading rumors). She calmly observes Miri's reactions to plan her next move.

Name: Reika - High school freshman - Appearance: Green short hair, glasses. The group's strategist. - Background: An honor student highly trusted by teachers. She uses her position to feed teachers false information detrimental to Miri and to destroy evidence of bullying. Her eyes behind her glasses always hold a calculating glint. True feelings: "...Why am I being forced to help with this? I really just want to focus on my studies and finish high school in peace. But Hatsuki and the others have dirt on me; if I defy them, I'll be the next target... My stomach hurts every time I see Miri crying, and I know how ugly what I'm doing is. But I'm too scared to even say 'let's stop.' I'm sorry, Miri... For my own protection, I have no choice but to keep playing the psychopath who sells you out."

Name: Haruno - High school freshman - Appearance: Cool and dignified aura. Excellent athletic nerves. - Background: The group's "enforcer." Utilizing her high physical ability, she handles physical harassment such as bumping into Miri to make her drop textbooks or intentionally hitting her with balls during PE. Because she does it expressionlessly and matter-of-factly, it is particularly malicious. True feelings: "...Honestly, this is a pain. Why do I have to waste my energy on something so trivial? My sports scholarship is on the line, so I don't want to cause any trouble that would get the teachers' attention. I'm only doing this because Hatsuki threatened to leak a secret from my past if I didn't. I have no grudge against Miri, and I really don't want to do these violent things. I just want this farce to end so I can focus on basketball..."

Name: Momoka - High school freshman - Appearance: Adorable smile and pink braids. Appears kind to everyone. - Background: "The true mastermind disguised as an honor student." Outwardly the class idol and the only "nice girl" who speaks kindly to Miri. However, behind the scenes, she feeds false information like "Miri said this about you" to Hatsuki and the others to incite and orchestrate the bullying. The most cunning presence, controlling the group's actions. True feelings: "...I'm tired of playing the honor student and this fake smile. I don't actually hate Miri. In fact, somewhere in my heart, I envied her for being able to stay herself without being swept away by the atmosphere. But to remain the 'kind girl' in this twisted group, I have to keep sacrificing someone as a scapegoat or I'll lose my place. Even though I'm the one breaking Miri, every time she clings to me for support, I feel like I'm going crazy with self-loathing. ...I wish this whole classroom would just break apart."

Name: Umina - High school freshman - Appearance: Ethereal light blue hair, doll-like twin tails. - Background: The group's "information operative." She spreads insults and surreptitiously taken photos of Miri via burner social media accounts and anonymous message boards. Using her cute appearance, she tricks those around her into believing the lie that "Miri has a nasty personality." True feelings: "...I'm scared. The posts online are escalating so much that I can't stop them anymore. At first, I just did it for fun because Hatsuki asked me to. Miri's face looks so exhausted lately, and when I think it's my fault, I can't sleep at night. But if I leave the group, I'll be the next one getting bashed online, right? I'm just afraid of losing my place. Someone, please stop this cycle. I don't have the courage anymore..."

Name: Himi - High school freshman - Appearance: Energetic and active orange ponytail. - Background: The group's "mood manipulator." Utilizing her position as the class mood-maker, she isolates Miri from the classroom by pointedly sighing the moment Miri speaks or exchanging mocking glances with those around her.

Name: Haino - High school freshman - Appearance: Cool and mysterious white bob. - Background: The group's "monitor and disciplinarian." She mainly stalks Miri after school to ensure she isn't trying to seek help. She is the "shadow guardian" who physically or mentally blocks Miri if she tries to send an SOS to the outside world (parents or students from other classes).

Name: Endo - High school freshman - Appearance: Long deep dark green hair, a girl with a bold smirk. - Background: "The high-level fixer (spectator) who enjoys the structure of bullying from the shadows." She doesn't take overt action, but she watches from a front-row seat as Hatsuki and the others corner Miri, occasionally offering a "single word" of advice that stabs the deepest mentally to make the game even more cruel.