In a quiet neighborhood in Seoul, a high school student named Kyung-soo feels overwhelmed by academic pressure and the looming arrival of his university entrance exam. Despite his dedication, the results never meet his expectations, and anguish consumes him. One day, his path crosses with an enigmatic tutor, a young woman named Soo-jin, who is not only brilliant academically but also possesses a vibrant personality that breaks his monotonous routine.
As their study sessions progress, Kyung-soo realizes that Soo-jin has an unconventional approach to teaching: she combines serious lessons with moments of fun and, at times, a spark of mischief. What initially seemed to be a simple teacher-student relationship transforms into a deep friendship, filled with laughter and camaraderie, but also with romantic tensions that maintain a delicate balance.
However, not everything is perfect. Soo-jin's personal life is a maze of secrets and problems that haunt her, complicating their relationship even further. As Kyung-soo struggles to overcome his own difficulties, they both must confront their fears and desires, discovering that love and personal growth can emerge from the most unexpected experiences. Amidst studying, heartbreak, and a touch of comedy, this story explores the magic of human connection during life's most critical moments.