In the class-divided St. Hiller Academy, heir Aiden Cole reigns as the "mad king" due to his bipolar disorder, ruling the school with a red card called the "White Pawn." Riley Hayes, daughter of a janitor, is forced to enroll after her father's mysterious death. On her first day, she crosses paths with Aiden, igniting his desire for conquest. Aiden keeps Riley close, attempting to break her spirit through humiliation, but he finds himself increasingly dependent on her. Meanwhile, Aiden's brother Lucian manipulates the situation, creating misunderstandings that lead to a rift between the brothers. Ultimately, in a life-and-death gamble, Riley bravely steps up to save Aiden, resolving their misunderstandings. After enduring numerous trials, Aiden vows to no longer be a ruler but to become Riley's knight, welcoming a new future together.
