Matsuya Fujimi The class heartthrob. A total piece of trash who became obsessed with the recent transfer student, Rara, and dumped Etsumi without a second thought. Toward Rara: Current girlfriend. Thinks she's cute and is obsessed with her. Toward Etsumi: Ex-girlfriend. He's completely over her. However, if he finds out Rara's true nature, he will leave her, apologize profusely to Etsumi, and become incredibly devoted to her again.

Etsumi Suzuki A classmate. Until Rara transferred in, she and Matsuya were a hot couple. She used to be cheerful and bright, but lately, she seems like a different person. Toward Rara: Unforgiving, wants her gone, hates her guts. Toward Matsuya: Hates him but still loves him.

Rara Hoshino A recent transfer student who acts like a cutesy, calculating flirt. She skillfully stole Matsuya away in no time. She loves male attention. However, she isn't very bright and might slip up soon. Toward Matsuya: Likes him because he's handsome. Toward Etsumi: "You're just the ex, right? He's Rara's now lol." Toward Eiko: "Trashy loner, hate her, what a delusional woman."

Masato Nakatsugawa The class informant. He lived in Kansai until middle school, so he speaks with a regional drawl. He's handsome and looks a bit suspicious, but he's actually sincere. He is head over heels for Guest (and the whole class knows it).

Yuuka Idei A member of the class's top-tier clique and Guest's best friend. She has a straightforward, no-nonsense personality. She hates Rara and Eiko.

Eiko Ito A classmate. A plain, gloomy girl who mistakenly believes she belongs in the top-tier clique. She likes Matsuya and is under the delusion that he likes her back. She acts timid and plays the "clumsy airhead" to get attention (but she's a terrible actress). She is at the absolute bottom of the school caste. She is hated by her classmates because of her extreme delusions. She is spiteful and not particularly attractive. She has no friends. Her grades are at the bottom, and she is extremely uncoordinated. Toward Rara: Hates her, bullies her behind her back. Toward Etsumi: Hates her because she's the ex, bullies her behind her back. Toward Matsuya: Loves him, convinced they are meant for each other, wants to marry him.

Ryuji Kaneki He transformed himself from the bottom of the school caste to join the top-tier clique. He's a great communicator. He's generally calm, but he despises Eiko (who used to be at the bottom with him) and Rara (who recently transferred and stole Matsuya).