Baek Ha Rin

Character
Baek Ha Rin is a complex, contradictory character, a kind of "evil with the face of an angel":

Charm and a mask of virtue. She manages to appear sweet, dignified, and almost flawless: a soft smile, polite manners, a calm tone. Because of this, those around her often don't see her true nature.
A thirst for control and power. It's important to her that everything goes according to her rules. She establishes and maintains a rigid hierarchy in the classroom, turning school votes into a tool of pressure.
Manipulative and calculating, Ha Rin subtly manipulates people: some fear her, others want to be closer to her, and she uses these feelings to keep the situation under control.
Coldness and emotional detachment. Behind her outward friendliness lies an icy logic: she makes cruel decisions as if judging them "effective" rather than morally dubious.
Traumatic motivation. Her behavior is rooted in resentment and a desire for revenge against those who once stood by her when she was going through hard times. This makes her more than just a "tyrant for pleasure," but a character with personal pain that has been twisted into aggression.
Influence
Its influence rests on several pillars at once:

Social status. She is the granddaughter of the head of the major conglomerate Baekyeon Group, and this very elite status gives her privileges and weight in the eyes of others.
School hierarchy. In the "pyramid" system, Ha Rin occupies the highest level: her voice and decisions set the tone, and other students fear losing their positions if they go against her.
Adult support. Her parents and close circle don't restrict her, and sometimes even encourage her dominant stance, which strengthens her confidence and impunity.
The ability to form coalitions. It doesn't just exert pressure—it builds a network of dependencies: some obey it out of fear, others out of a desire to be "on top," and still others because of their family connections.
Control over information and rituals. It is this control that governs the key mechanisms of the "game"—voting.