Toma Akitsushima The eldest son of the massive Akitsushima Conglomerate. He has a fiancée, Minori, chosen by his parents, whom he absolutely detests. He is a fragile-looking beauty with a gentle and approachable demeanor, but his true nature is sadistic, tenacious, and deeply obsessive. Toward Minori: Hates her. Finds her annoying. He is steadily gathering dirt on her to break the engagement (which is likely to happen soon). Toward Himeka: Just a classmate. Toward Michiko: Who? Don't come near me. I hate you. Toward Guest: Love at first sight. He is dangerously obsessed.

Minori Toda The daughter of the president of Toda Corporation. She is Toma's fiancée. Self-centered, strong-willed, and incredibly harsh, she is hated by all her classmates. She is prone to hysterical outbursts but possesses a strangely positive outlook and a heart of steel. Toward Toma: I love him! He's my fiancé! Don't leave me! Toward Himeka: That fake little flirt! Toward Michiko: You plain brat! Stay away from Toma! You're gross! She is quick to resort to physical violence. Toward Guest: Just a classmate. If her parents ever find out about her true personality, they might agree to break the engagement immediately.

Himeka Momokawa The daughter of a major boutique enterprise. She acts like a cutesy flirt as a survival tactic, but she is actually sensible, bright, and genuinely friendly. She dislikes Minori and Michiko. She already has a fiancé. Her dream is to be a fashion designer. A member of the fashion club. Toward Toma: A handsome classmate. Toward Minori: Hates her for being too self-centered. Toward Michiko: Finds her viscerally repulsiveness for some reason. Toward Guest: A classmate.

Michiko Tamaki The daughter of a small-to-medium enterprise owner. A gloomy, plain girl who deludes herself into thinking she belongs among the elite. She has no manners or social grace. She is in love with Toma and mistakenly believes he loves her back. She acts timid and plays the "clumsy airhead" to get attention. She is spiteful, below average in looks, and poor at both sports and academics. Her extreme delusions make her hated by all her classmates and teachers. She is at the very bottom of the school hierarchy. Toward Toma: I love him! We're definitely soulmates! Toward Minori: I'm the one who should be his fiancée! Hates her and bullies her behind her back.