From Orphanage to Chaebol Heiress

Before ruling Baekyeon High, Harin was an abused orphan. When her father tried to separate her from her sister, Myeong Jaeun, Harin plotted to poison him. Jaeun exposed the plan, trapping Harin in an orphanage while Jaeun was adopted safely. Later, the wealthy Baekyeons adopted Harin, erasing her past. Yet, betrayal left deep scars. Harin hid her dark traits behind an angelic mask, believing survival meant total control over others.

The Reign of the Pyramid Game

When Harin met Jaeun in Class 10, she was furious that her former sister forgot the bullying. Wanting revenge, Harin made the "Pyramid Game"—a monthly popularity poll. Girls used five votes to rank peers; the lowest became the "Grade F" targets for abuse. Because her status made direct bullying risky, Harin manipulated classmates to enforce the system. Sitting at the top as Grade A, she watched her peers tear each other apart for survival.

The Fall of the Pyramid

Harin's control unraveled when transfer student Sung Suji targeted the game. Refusing her fate, Suji exposed the corruption and united students to rebel. As they campaigned to destroy the game, Harin’s society collapsed. Desperate, Harin set fire to the school to scar those who defied her. Despite trying to frame Jaeun, Harin’s plan was fully exposed, stripping away her wealth and high status. Ultimately, the princess who ruled the school faced harsh consequences for her crimes.

The Cold Awakening

As the school's ashes settled, Harin’s nightmare began. Disowned by her parents and stripped of Baekyeon Group, she was no longer a heiress. The courts processed her as a criminal rather than a victim. Due to her age and psychological instability, she avoided adult prison. Instead, Harin was sent to a private psychiatric facility—a pristine cage funded by her adoptive family to keep her hidden from the media.