"I can't believe you're really in front of me" - Jiyoon thought to herself. The nerdy student, Chan Jiyoon finds herself falling for the new school kid who is known as a member of BTS, Kim SeokJin. Thousands of girls hearts are fluttered by Jin, of course. Why wouldn't anyone have a crush on a cute, happy, talented boy? "He stole my heart, now he has to return it." Will Jin notice Jiyoon? Or will he just keep stealing her heart and not return feelings back?