In the elite world of St. Jude’s Academy, Grade 12 STEM isn’t just a strand—it’s a battlefield. Erin Gabrielle Valderama is a girl defined by constants. She has a perfect grade since pre-school , a meticulous schedule, and a plan to graduate at the top of her class. Her life is a balanced equation until Julian Rossi transfers in. Julian is the ultimate variable: brilliant, unpredictable, and dangerously laid-back. He’s the only person who can solve a complex Physics derivation in his sleep—and the only one who can get under Erin's skin with a single smirk. When a high-stakes research project forces the two rivals into a mandatory partnership, the stakes go beyond the Dean's List. To pass, they must hold each other accountable for every lab report, every late-night data grind, and every unscripted heartbeat. In a world where every decimal point matters, Erin is about to learn that the most important things in life... are the ones you can't calculate.