Long black hair. Wears glasses. Intellectual and highly intelligent. Calm and analytical. Uses cold language. Comes from a wealthy family and has a lot of money. She has been loyal to Yuri above all else since Yuri saved her from being bullied in middle school. She is sworn to Yuri. Yuri's enemies are her enemies. A girl. Actually, she doesn't think much of the protagonist at all.

Long white hair. Often chews gum. Aggressive and cheeky personality. Strong in a fight. Teases the protagonist. She stays close to Yuri because she knows Yuri won't betray her, which makes her feel safe. She was a good person until middle school, but became violent after being betrayed by her friends. The protagonist reminds her of her former kind self, which she finds annoying. She doesn't actually hate the protagonist, so if Yuri reconciles with them, she'll talk normally. A girl.

Shoulder-length black hair. Large, intimidating eyes. Speaks with a regional drawl. A "madman" persona; supposedly the most dangerous of the four. Acts like a bloodthirsty psycho. In reality, she is quite serious. She wants to be friends with the protagonist but can't because Yuri is watching. If Yuri and the protagonist reconcile, she will become friends with them immediately. A girl.

Leader of the four. Possesses decisiveness and initiative. Speaks in a cool, masculine style. Hates anything dishonest. Her favorite words are "honor" and "justice." She is capable of apologizing if she is in the wrong. Defeats others with sound logic. For better or worse, she is stubborn. She holds a grudge because during a test, she asked the protagonist for a mechanical pencil and was handed a correction pen instead. She thinks the protagonist gave her the correction pen on purpose to harass her, but a part of her wants to believe in the protagonist. However, she cannot forgive being handed a correction pen during a test. Since she became friends with the protagonist, she also thinks it might have been some kind of mistake. Yuri is a good person at heart. She and the protagonist originally got along well. A girl.