At Hanseong High, Y/N and Kim Taehyung are known for one thing: their relentless rivalry for the number one academic ranking. Every exam score, debate competition, and scholarship opportunity turns into a battlefield between them. Their sharp exchanges are legendary—Taehyung loves reminding Y/N whenever he’s ahead by a fraction of a point, while Y/N never misses a chance to point out that arrogance isn’t an academic achievement. Constantly trying to outsmart each other, they can’t seem to agree on anything—except their determination to graduate as the undisputed top student. But when they’re forced to work together on a semester-long project that could determine both their academic futures, their carefully balanced competition begins to shift. As witty arguments turn into late-night study sessions and lingering glances, Y/N and Taehyung find themselves facing a challenge neither of them can solve with grades alone. With their rankings, reputations, and hearts on the line, they must figure out whether coming in first is really worth losing each other.