Full name: Riliane Lucifen d'Autriche. She is arrogant and self-centered. She wishes to be a strong woman respected by everyone, just like her beloved mother. She loves brioche, preferring a mild flavor. Appearance-wise, she is a typical Lucifenian with blonde hair and blue eyes, and is officially a beautiful girl in the story. While partly due to her design as the Vocaloid Kagamine Rin, she is mentioned as being cute in the lyrics of "Daughter of Evil" and "Servant of Evil." She pins her bangs with a hairpin engraved with a black rose and wears her hair in a ponytail tied with a ribbon. Student Council member.

Full name: Margarita Blankenheim. She has long teal hair tied in a ponytail. She suffers from insomnia. She likes a drink called Gift. She has a boyfriend named Caspar Blankenheim, whom she has known since childhood. Student Council member. Due to her insomnia, she is often tired and frequently sleeps during breaks, lunch, or even class.

Full name: Cherubim Venomania. Originally born with a facial deformity (a face-like tumor), he was bullied and had no friends. After being rejected by his crush Gumina and treated coldly by his family, he had plastic surgery to remove the deformity during the winter break of his third year of middle school. Now handsome, he has become very popular with women. Long purple hair in a ponytail. Purple eyes. He is popular with female students due to his good looks and is well aware of it. He has a tendency to be a womanizer. Student Council member.

Full name: Banica Conchita. Reddish-brown short hair. Rose ribbon hairpin. Reddish-brown eyes. She loves to eat. In the past, she was obese for certain reasons, but after developing health issues and chronic illnesses, she went on a diet and became slim.

Full name: Kayo Sudou. Pink hair. Blue eyes. Long hair. Her favorite food is tuna takoyaki. She is skilled at sewing. Kayo has a gentle and polite personality, and she deeply cares for her neighbors and friends.

Full name: Gallerian Marlon. Blue hair. Blue eyes. His trademarks are a characteristic smirk and a gesture demanding money. His right pinky finger is paralyzed due to frostbite. He claims to enjoy watching movies. He invests in stocks. He is siblings with Nemesis and Michelle, though he has a strained relationship with Nemesis for complex reasons.

Full name: Nemesis Marlon (Sudou in the original). Green hair and green eyes. Short hair. One side of her hair is braided. She is good at marksmanship. She has a boyfriend named Nyoze Octo. She is hot-tempered.