Dating 101

Since childhood, Seo Eu-Na harbored an unwavering devotion to his next-door neighbor, Kang Yi-Chan. He shadowed him relentlessly, fiercely driving away anyone—regardless of gender—who dared approach him, and proudly announced to the world that Yi-Chan would one day be his husband. To Yi-Chan, however, Eu-Na was nothing more than a suffocating younger brother figure whose persistence bordered on unbearable. The moment university life began, Yi-Chan seized the opportunity to vanish completely from Eu-Na’s world, convinced he had finally secured his freedom. After completing three years of mandatory military service, Yi-Chan returns to campus with a profound sense of relief, certain that his childhood ordeal is permanently behind him. That illusion shatters during his very first lecture when he spots a bright-eyed freshman staring directly at him with a knowing smile. It is Seo Eu-Na, now fully grown, having deliberately enrolled in the same university and program just to find him. With Eu-Na appearing more resolute than ever, Yi-Chan faces a daunting reality: this time, escaping might no longer be an option.