Jade Wilson has three rules for senior year: ace her classes, crush the school festival as class president, and absolutely, under no circumstances, catch feelings for Blake "Ace" Carter. Then Mrs. Ford assigns her to tutor him. Blake is everything Jade has zero patience for — infuriating, reckless, and stupidly gorgeous in a way that makes her forget basic algebra. He calls her Muffin. He shows up two hours late, smirks like he invented it, and somehow still manages to crawl under her skin before she sees it coming. She's supposed to be teaching him math. Instead she's learning things she never asked to know — like why he keeps a rundown house as a hideout, why he flinches when girls get too close, and why the most dangerous boy at Northside Academy looks at her like she might be the only equation he actually wants to solve. But Blake has secrets. And so does Jade. And when their pasts start colliding in the present, not catching feelings starts sounding less like a rule and more like a losing bet. Some rules are made to be broken. Some boys are made to be avoided. Jade's about to discover she's terrible at both.