In Mexico City, 2025, a disciplined scholarship student reluctantly signs a 'pretend engagement' contract with a mysterious transfer princess, whose secret magical heritage threatens to spiral out of control as their staged romance becomes dangerously real; switching between the perspectives of their skeptical friends, disapproving families, and rival musicians, the students struggle to harmonize their desires during a citywide musical competition, where winning—against the glittering neon backdrop—could secure freedom, love, and the strength to define their own destinies.