After her parents' divorce during senior year, Simoune Fierro transforms from an obedient girl into a reckless party girl drowning in alcohol and impulsive choices at school. With wealth shielding her from consequences and no one to answer to, she pursues meaningless sexual encounters with multiple men—a desperate escape from her fractured family. Even her father's attempts to intervene fall short until a chance meeting with a mysterious stranger at a bar ignites an unexpected one-night stand that shatters her carefully constructed walls and rewrites her entire existence.