When the quiet but sharp-tongued Kim Sunoo is forced to sit beside the new transfer student, Park Sunghoon, his peaceful school life crumbles overnight. Sunghoon is everything Sunoo can't stand-arrogant, cold, and infuriatingly perfect at everything he does. From classroom arguments to after-school clashes, the two become locked in a battle of pride, neither willing to back down. But between the sharp words and colder glares, something begins to shift. A spark hidden beneath the rivalry turns into stolen glances, accidental touches and a tension neither of them can explain or resist. In a world where love is the last thing they wanted, Sunoo and Sunghoon must face the truth: sometimes the line between hate and something deeper is thinner than they ever imagined.